On Feb 2, 2012, at 9:38 AM, Fred Hink wrote: > A tire manufacturer has a pressure recommendation for your tire on > your bike with your riding style? Amazing! I'd like to see that. > Also the tire pressure guide in your owners manual can be off too > since it is only a basic recommendation for a starting point. You > have to adjust your pressure according to how you want your bike to > handle and perform. Never exceed the maximum pressure stamped on > the sidewall. This pressure is not the pressure the tire > manufacturer recommends you use but a safe pressure for a maximum > load which is also stamped on your tire sidewall. > Since your tire is worn and running a lower than normal pressure for > street riding, I'd say you need to start with a new (good) tire and > raise your pressure some. There are reasons why most tires will > have wear bars. When a tire gets worn, it's geometry changes and > effects the way your bike handles. Try raising your pressure and > see if that helps. If not, I'd say you may need some new tires. > > Fred > www.arrowheadmotorsports.com > > > -----Original Message----- From: Kevin Crossett > Sent: Thursday, February 02, 2012 5:47 AM > To: Ron Criswell > Cc: DSN_KLR650@yahoogroups.com > Subject: Re: [DSN_KLR650] Re: Slow speed swerve with hands off > handlebar > > I was running 32 rear, 26 front per the tire manufacturer's > recommendation. I still set the rear at 32, but lowered the front from > 26 to 24 because the tire wasn't heating up enough during normal > running operation. I don't think I quite have the front pressure right > yet so I may take out another PSI. > > > Feb 2, 2012, at 7:21 AM, Ron Criswell wrote: > >> I would be curious what tire pressure you run? I run 32 psi on >> street and never have wobble issues. 20 to 25 psi on dirt. It >> doesn't matter what tire I use from Dunlop 606 to Gripsters. I have >> run the Kendas, Continentals and now run Mefo's. >> >> Criswell >> >> Sent from my iPad >> >> On Feb 1, 2012, at 9:10 PM, "kevincrossett" >> wrote: >> >>> >>> --- In DSN_KLR650@yahoogroups.com, Jeff Saline wrote: >>> > >>> > On Thu, 02 Feb 2012 00:06:18 -0000 "kevincrossett" kcrossett@... >>> > writes: >>> > > So i have finally solved a mid speed wobble (wobble from 40 to >>> 30 >>> > > mph). I tightened my steering stem to just barely drag when >>> checking >>> > > with my pinky, and i have my preload set front and rear to >>> about 30 >>> > > percent of travel. My only problem left is a slight swerve >>> below 20 >>> > > mph with my hands off the handlebar. My rear wheel alignment is >>> as >>> > > close as I can get it using the string method.I have thought >>> of a >>> > > few things that may be the culprit such as warped front rotor >>> or a >>> > > worn tire. My rotor is an oversize EBC. The brakes now barely >>> rub >>> > > after some filing on my green Galfer pads. The rubbing is >>> rhythmic, >>> > > but just barely. I have an Eagle Mike fork brace that i believe >>> is >>> > > installed correctly as both sides of the brace are seated on the >>> > > fork tubes correctly. The tires are Conti Trail Attacks with >>> about >>> > > 9,000 miles. I have heard these tires may have stability isses >>> on >>> > > other bikes. >>> > > Any thoughts? >>> > <><><><><><><> >>> > <><><><><><><> >>> > >>> > Not trying to be negative but riding hands off below 20 mph is >>> probably >>> > not gonna give you much useful information. I would expect to have >>> some >>> > swerving going on if I was riding like that no matter how well the >>> bike >>> > was set up. >>> > >>> > The check I suggest you try is from about 50 mph decelerating to >>> about >>> 25 >>> > or 30 mph with hands just off the bars. If you get any head shake >>> you >>> > might have a steering head bearing adjustment issue. Or it could >>> be >>> > tires or tire pressure or suspension. This test should give you an >>> idea >>> > if the steering head bearings are too loose. >>> > >>> > When steering head bearings are too tight you'll get a weave when >>> trying >>> > to ride straight with your hands on the bars. What is happening is >>> you >>> > can't make little corrections because the bearings are too tight. >>> So >>> you >>> > over correct in one direction and then over correct again in the >>> other >>> > direction. And that continues until something changes. >>> > >>> > Based on the miles (9,000) on the tires I'll guess the tires are >>> now >>> > causing issues. >>> > >>> > Best, >>> > >>> > Jeff Saline >>> > ABC # 4412 South Dakota Airmarshal >>> > Airheads Beemer Club www.airheads.org >>> > The Beautiful Black Hills of South Dakota >>> > 75 R90/6, 03 KLR650 >>> > >>> > . >>> > . >>> > __________________________________________________________ >>> > The New "Skinny" Fruit >>> > How This Strange 62-Cent African Fruit Is Making Americans Skinny. >>> > http://thirdpartyoffers.juno.com/ >>> TGL3141/4f29fae02af4b661cf1st06vuc >>> > >>> >>> Thanks Jeff. I don't have any wobble from 70 to 20 mph. I had an >>> issue >>> with some mid speed wobble but the preload and stering stem nut >>> adjustments solved that. I am thinking the front tire may be wearing >>> unevenly, which could cause the low speed swerve. I don't recall >>> having >>> this issue a month or two ago. i think some Gripsters are in my >>> future. >>> They seem to have good reviews and are long lasting for my commuting >>> duties. >>> >>> [Non-text portions of this message have been removed] >>> >>> > > > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > List Sponsors - Dual Sport News: http://www.dualsportnews.com > Arrowhead Motorsports: http://www.arrowheadmotorsports.com > List FAQ courtesy of Chris Krok: http://www.bigcee.com/klr650faq.html > Member Map: http://groups.yahoo.com/group/DSN_KLR650/app/peoplemap/view/map > Group Apps: http://groups.yahoo.com/group/DSN_KLR650/grouplets/subscriptionsYahoo > ! Groups Links > > > [Non-text portions of this message have been removed]
warning -tire thread starting - warning
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slow speed swerve with hands off handlebar
Here is a screen shot from Continental. It is for the Tengai but also
KLR650A. It's the closest I could come for my 2005 KLR650. My
conversion from 1.8 bar to psi is 26.10 psi. Am I reading this wrong?
Here is a link to the site: http://www.conti-online.com/generator/www/de/en/continental/motorcycle/themes/motorcycletires/enduro/trailattack/trail_attack_en.html
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- Posts: 3
- Joined: Sat Jun 04, 2011 10:57 am
slow speed swerve with hands off handlebar
I forgot to say thanks. I will experiment with higher pressures. The
tire is not at its wear bars, I probably have another mm or two to go
before that happens.
On Feb 2, 2012, at 9:38 AM, Fred Hink wrote: > A tire manufacturer has a pressure recommendation for your tire on > your bike with your riding style? Amazing! I'd like to see that. > Also the tire pressure guide in your owners manual can be off too > since it is only a basic recommendation for a starting point. You > have to adjust your pressure according to how you want your bike to > handle and perform. Never exceed the maximum pressure stamped on > the sidewall. This pressure is not the pressure the tire > manufacturer recommends you use but a safe pressure for a maximum > load which is also stamped on your tire sidewall. > Since your tire is worn and running a lower than normal pressure for > street riding, I'd say you need to start with a new (good) tire and > raise your pressure some. There are reasons why most tires will > have wear bars. When a tire gets worn, it's geometry changes and > effects the way your bike handles. Try raising your pressure and > see if that helps. If not, I'd say you may need some new tires. > > Fred > www.arrowheadmotorsports.com > > > -----Original Message----- From: Kevin Crossett > Sent: Thursday, February 02, 2012 5:47 AM > To: Ron Criswell > Cc: DSN_KLR650@yahoogroups.com > Subject: Re: [DSN_KLR650] Re: Slow speed swerve with hands off > handlebar > > I was running 32 rear, 26 front per the tire manufacturer's > recommendation. I still set the rear at 32, but lowered the front from > 26 to 24 because the tire wasn't heating up enough during normal > running operation. I don't think I quite have the front pressure right > yet so I may take out another PSI. > > > Feb 2, 2012, at 7:21 AM, Ron Criswell wrote: > >> I would be curious what tire pressure you run? I run 32 psi on >> street and never have wobble issues. 20 to 25 psi on dirt. It >> doesn't matter what tire I use from Dunlop 606 to Gripsters. I have >> run the Kendas, Continentals and now run Mefo's. >> >> Criswell >> >> Sent from my iPad >> >> On Feb 1, 2012, at 9:10 PM, "kevincrossett" >> wrote: >> >>> >>> --- In DSN_KLR650@yahoogroups.com, Jeff Saline wrote: >>> > >>> > On Thu, 02 Feb 2012 00:06:18 -0000 "kevincrossett" kcrossett@... >>> > writes: >>> > > So i have finally solved a mid speed wobble (wobble from 40 to >>> 30 >>> > > mph). I tightened my steering stem to just barely drag when >>> checking >>> > > with my pinky, and i have my preload set front and rear to >>> about 30 >>> > > percent of travel. My only problem left is a slight swerve >>> below 20 >>> > > mph with my hands off the handlebar. My rear wheel alignment is >>> as >>> > > close as I can get it using the string method.I have thought >>> of a >>> > > few things that may be the culprit such as warped front rotor >>> or a >>> > > worn tire. My rotor is an oversize EBC. The brakes now barely >>> rub >>> > > after some filing on my green Galfer pads. The rubbing is >>> rhythmic, >>> > > but just barely. I have an Eagle Mike fork brace that i believe >>> is >>> > > installed correctly as both sides of the brace are seated on the >>> > > fork tubes correctly. The tires are Conti Trail Attacks with >>> about >>> > > 9,000 miles. I have heard these tires may have stability isses >>> on >>> > > other bikes. >>> > > Any thoughts? >>> > <><><><><><><> >>> > <><><><><><><> >>> > >>> > Not trying to be negative but riding hands off below 20 mph is >>> probably >>> > not gonna give you much useful information. I would expect to have >>> some >>> > swerving going on if I was riding like that no matter how well the >>> bike >>> > was set up. >>> > >>> > The check I suggest you try is from about 50 mph decelerating to >>> about >>> 25 >>> > or 30 mph with hands just off the bars. If you get any head shake >>> you >>> > might have a steering head bearing adjustment issue. Or it could >>> be >>> > tires or tire pressure or suspension. This test should give you an >>> idea >>> > if the steering head bearings are too loose. >>> > >>> > When steering head bearings are too tight you'll get a weave when >>> trying >>> > to ride straight with your hands on the bars. What is happening is >>> you >>> > can't make little corrections because the bearings are too tight. >>> So >>> you >>> > over correct in one direction and then over correct again in the >>> other >>> > direction. And that continues until something changes. >>> > >>> > Based on the miles (9,000) on the tires I'll guess the tires are >>> now >>> > causing issues. >>> > >>> > Best, >>> > >>> > Jeff Saline >>> > ABC # 4412 South Dakota Airmarshal >>> > Airheads Beemer Club www.airheads.org >>> > The Beautiful Black Hills of South Dakota >>> > 75 R90/6, 03 KLR650 >>> > >>> > . >>> > . >>> > __________________________________________________________ >>> > The New "Skinny" Fruit >>> > How This Strange 62-Cent African Fruit Is Making Americans Skinny. >>> > http://thirdpartyoffers.juno.com/ >>> TGL3141/4f29fae02af4b661cf1st06vuc >>> > >>> >>> Thanks Jeff. I don't have any wobble from 70 to 20 mph. I had an >>> issue >>> with some mid speed wobble but the preload and stering stem nut >>> adjustments solved that. I am thinking the front tire may be wearing >>> unevenly, which could cause the low speed swerve. I don't recall >>> having >>> this issue a month or two ago. i think some Gripsters are in my >>> future. >>> They seem to have good reviews and are long lasting for my commuting >>> duties. >>> >>> [Non-text portions of this message have been removed] >>> >>> > > > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > List Sponsors - Dual Sport News: http://www.dualsportnews.com > Arrowhead Motorsports: http://www.arrowheadmotorsports.com > List FAQ courtesy of Chris Krok: http://www.bigcee.com/klr650faq.html > Member Map: http://groups.yahoo.com/group/DSN_KLR650/app/peoplemap/view/map > Group Apps: http://groups.yahoo.com/group/DSN_KLR650/grouplets/subscriptionsYahoo > ! Groups Links > > >
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slow speed swerve with hands off handlebar
Well the screen shot did not come through, If you follow the link, however, you can see the pressure recommendations for the tires conti sells. You're right, they are only recommendations and I may be oversensitive to their suggestions.
--- In DSN_KLR650@yahoogroups.com, Kevin Crossett wrote: > > Here is a screen shot from Continental. It is for the Tengai but also > KLR650A. It's the closest I could come for my 2005 KLR650. My > conversion from 1.8 bar to psi is 26.10 psi. Am I reading this wrong? > > Here is a link to the site: http://www.conti-online.com/generator/www/de/en/continental/motorcycle/themes/motorcycletires/enduro/trailattack/trail_attack_en.html > > > > On Feb 2, 2012, at 9:38 AM, Fred Hink wrote: > > > > A tire manufacturer has a pressure recommendation for your tire on > > your bike with your riding style? Amazing! I'd like to see that. > > Also the tire pressure guide in your owners manual can be off too > > since it is only a basic recommendation for a starting point. You > > have to adjust your pressure according to how you want your bike to > > handle and perform. Never exceed the maximum pressure stamped on > > the sidewall. This pressure is not the pressure the tire > > manufacturer recommends you use but a safe pressure for a maximum > > load which is also stamped on your tire sidewall. > > Since your tire is worn and running a lower than normal pressure for > > street riding, I'd say you need to start with a new (good) tire and > > raise your pressure some. There are reasons why most tires will > > have wear bars. When a tire gets worn, it's geometry changes and > > effects the way your bike handles. Try raising your pressure and > > see if that helps. If not, I'd say you may need some new tires. > > > > Fred > > www.arrowheadmotorsports.com > > > > > > -----Original Message----- From: Kevin Crossett > > Sent: Thursday, February 02, 2012 5:47 AM > > To: Ron Criswell > > Cc: DSN_KLR650@yahoogroups.com > > Subject: Re: [DSN_KLR650] Re: Slow speed swerve with hands off > > handlebar > > > > I was running 32 rear, 26 front per the tire manufacturer's > > recommendation. I still set the rear at 32, but lowered the front from > > 26 to 24 because the tire wasn't heating up enough during normal > > running operation. I don't think I quite have the front pressure right > > yet so I may take out another PSI. > > > > > > Feb 2, 2012, at 7:21 AM, Ron Criswell wrote: > > > >> I would be curious what tire pressure you run? I run 32 psi on > >> street and never have wobble issues. 20 to 25 psi on dirt. It > >> doesn't matter what tire I use from Dunlop 606 to Gripsters. I have > >> run the Kendas, Continentals and now run Mefo's. > >> > >> Criswell > >> > >> Sent from my iPad > >> > >> On Feb 1, 2012, at 9:10 PM, "kevincrossett" > >> wrote: > >> > >>> > >>> --- In DSN_KLR650@yahoogroups.com, Jeff Saline wrote: > >>> > > >>> > On Thu, 02 Feb 2012 00:06:18 -0000 "kevincrossett" kcrossett@ > >>> > writes: > >>> > > So i have finally solved a mid speed wobble (wobble from 40 to > >>> 30 > >>> > > mph). I tightened my steering stem to just barely drag when > >>> checking > >>> > > with my pinky, and i have my preload set front and rear to > >>> about 30 > >>> > > percent of travel. My only problem left is a slight swerve > >>> below 20 > >>> > > mph with my hands off the handlebar. My rear wheel alignment is > >>> as > >>> > > close as I can get it using the string method.I have thought > >>> of a > >>> > > few things that may be the culprit such as warped front rotor > >>> or a > >>> > > worn tire. My rotor is an oversize EBC. The brakes now barely > >>> rub > >>> > > after some filing on my green Galfer pads. The rubbing is > >>> rhythmic, > >>> > > but just barely. I have an Eagle Mike fork brace that i believe > >>> is > >>> > > installed correctly as both sides of the brace are seated on the > >>> > > fork tubes correctly. The tires are Conti Trail Attacks with > >>> about > >>> > > 9,000 miles. I have heard these tires may have stability isses > >>> on > >>> > > other bikes. > >>> > > Any thoughts? > >>> > <><><><><><><> > >>> > <><><><><><><> > >>> > > >>> > Not trying to be negative but riding hands off below 20 mph is > >>> probably > >>> > not gonna give you much useful information. I would expect to have > >>> some > >>> > swerving going on if I was riding like that no matter how well the > >>> bike > >>> > was set up. > >>> > > >>> > The check I suggest you try is from about 50 mph decelerating to > >>> about > >>> 25 > >>> > or 30 mph with hands just off the bars. If you get any head shake > >>> you > >>> > might have a steering head bearing adjustment issue. Or it could > >>> be > >>> > tires or tire pressure or suspension. This test should give you an > >>> idea > >>> > if the steering head bearings are too loose. > >>> > > >>> > When steering head bearings are too tight you'll get a weave when > >>> trying > >>> > to ride straight with your hands on the bars. What is happening is > >>> you > >>> > can't make little corrections because the bearings are too tight. > >>> So > >>> you > >>> > over correct in one direction and then over correct again in the > >>> other > >>> > direction. And that continues until something changes. > >>> > > >>> > Based on the miles (9,000) on the tires I'll guess the tires are > >>> now > >>> > causing issues. > >>> > > >>> > Best, > >>> > > >>> > Jeff Saline > >>> > ABC # 4412 South Dakota Airmarshal > >>> > Airheads Beemer Club www.airheads.org > >>> > The Beautiful Black Hills of South Dakota > >>> > 75 R90/6, 03 KLR650 > >>> > > >>> > . > >>> > . > >>> > __________________________________________________________ > >>> > The New "Skinny" Fruit > >>> > How This Strange 62-Cent African Fruit Is Making Americans Skinny. > >>> > http://thirdpartyoffers.juno.com/ > >>> TGL3141/4f29fae02af4b661cf1st06vuc > >>> > > >>> > >>> Thanks Jeff. I don't have any wobble from 70 to 20 mph. I had an > >>> issue > >>> with some mid speed wobble but the preload and stering stem nut > >>> adjustments solved that. I am thinking the front tire may be wearing > >>> unevenly, which could cause the low speed swerve. I don't recall > >>> having > >>> this issue a month or two ago. i think some Gripsters are in my > >>> future. > >>> They seem to have good reviews and are long lasting for my commuting > >>> duties. > >>> > >>> [Non-text portions of this message have been removed] > >>> > >>> > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > ------------------------------------ > > > > List Sponsors - Dual Sport News: http://www.dualsportnews.com > > Arrowhead Motorsports: http://www.arrowheadmotorsports.com > > List FAQ courtesy of Chris Krok: http://www.bigcee.com/klr650faq.html > > Member Map: http://groups.yahoo.com/group/DSN_KLR650/app/peoplemap/view/map > > Group Apps: http://groups.yahoo.com/group/DSN_KLR650/grouplets/subscriptionsYahoo > > ! Groups Links > > > > > > > > > [Non-text portions of this message have been removed] >
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slow speed swerve with hands off handlebar
Right. OK. I'll increase pressures and see how the bike handles.
Thanks for everyone's help.
On Feb 2, 2012, at 10:05 AM, Fred Hink wrote: > Your conversion from this chart is correct. The problem is that > these pressures are most likely from Kawasaki and they have come up > with these pressures for a bike that is designed to be ridden on the > dirt and also on the street. These are only basic recommendations > and are just a starting point. Since you say you want to ride more > on the street you need to adjust your pressures accordingly, which > will mean higher. If you were riding strictly off road, you could > get by with less pressure. If your tires are worn and you have a > handling problem, the tire pressure may or may not help your > handling. Only starting with a new tire will you know for sure that > changing pressure will effect the handling. Every situation is > going to be different but it s only air, so try some more and see > what happens. I m guessing for a street bike you d want somewhere > around 32-36 psi for the front and a few more pounds in the rear. > It all depends on the load you are putting on the tires and the > speeds you drive. Higher loads or higher speeds will require higher > pressures. The inverse is also true. > > Good luck and let me know what you find out. > > Fred > > > From: Kevin Crossett > Sent: Thursday, February 02, 2012 7:55 AM > To: Fred Hink > Cc: DSN_KLR650@yahoogroups.com > Subject: Re: [DSN_KLR650] Re: Slow speed swerve with hands off > handlebar > > Here is a screen shot from Continental. It is for the Tengai but > also KLR650A. It's the closest I could come for my 2005 KLR650. My > conversion from 1.8 bar to psi is 26.10 psi. Am I reading this wrong? > > Here is a link to the site: http://www.conti-online.com/generator/www/de/en/continental/motorcycle/themes/motorcycletires/enduro/trailattack/trail_attack_en.html > > > > > > On Feb 2, 2012, at 9:38 AM, Fred Hink wrote: > > >> A tire manufacturer has a pressure recommendation for your tire on >> your bike with your riding style? Amazing! I'd like to see that. >> Also the tire pressure guide in your owners manual can be off too >> since it is only a basic recommendation for a starting point. You >> have to adjust your pressure according to how you want your bike to >> handle and perform. Never exceed the maximum pressure stamped on >> the sidewall. This pressure is not the pressure the tire >> manufacturer recommends you use but a safe pressure for a maximum >> load which is also stamped on your tire sidewall. >> Since your tire is worn and running a lower than normal pressure >> for street riding, I'd say you need to start with a new (good) tire >> and raise your pressure some. There are reasons why most tires >> will have wear bars. When a tire gets worn, it's geometry changes >> and effects the way your bike handles. Try raising your pressure >> and see if that helps. If not, I'd say you may need some new tires. >> >> Fred >> www.arrowheadmotorsports.com >> >> >> -----Original Message----- From: Kevin Crossett >> Sent: Thursday, February 02, 2012 5:47 AM >> To: Ron Criswell >> Cc: DSN_KLR650@yahoogroups.com >> Subject: Re: [DSN_KLR650] Re: Slow speed swerve with hands off >> handlebar >> >> I was running 32 rear, 26 front per the tire manufacturer's >> recommendation. I still set the rear at 32, but lowered the front >> from >> 26 to 24 because the tire wasn't heating up enough during normal >> running operation. I don't think I quite have the front pressure >> right >> yet so I may take out another PSI. >> >> >> Feb 2, 2012, at 7:21 AM, Ron Criswell wrote: >> >>> I would be curious what tire pressure you run? I run 32 psi on >>> street and never have wobble issues. 20 to 25 psi on dirt. It >>> doesn't matter what tire I use from Dunlop 606 to Gripsters. I have >>> run the Kendas, Continentals and now run Mefo's. >>> >>> Criswell >>> >>> Sent from my iPad >>> >>> On Feb 1, 2012, at 9:10 PM, "kevincrossett" >>> wrote: >>> >>>> >>>> --- In DSN_KLR650@yahoogroups.com, Jeff Saline >>>> wrote: >>>> > >>>> > On Thu, 02 Feb 2012 00:06:18 -0000 "kevincrossett" kcrossett@... >>>> > writes: >>>> > > So i have finally solved a mid speed wobble (wobble from 40 >>>> to 30 >>>> > > mph). I tightened my steering stem to just barely drag when >>>> checking >>>> > > with my pinky, and i have my preload set front and rear to >>>> about 30 >>>> > > percent of travel. My only problem left is a slight swerve >>>> below 20 >>>> > > mph with my hands off the handlebar. My rear wheel alignment is >>>> as >>>> > > close as I can get it using the string method.I have thought >>>> of a >>>> > > few things that may be the culprit such as warped front rotor >>>> or a >>>> > > worn tire. My rotor is an oversize EBC. The brakes now barely >>>> rub >>>> > > after some filing on my green Galfer pads. The rubbing is >>>> rhythmic, >>>> > > but just barely. I have an Eagle Mike fork brace that i believe >>>> is >>>> > > installed correctly as both sides of the brace are seated on >>>> the >>>> > > fork tubes correctly. The tires are Conti Trail Attacks with >>>> about >>>> > > 9,000 miles. I have heard these tires may have stability >>>> isses on >>>> > > other bikes. >>>> > > Any thoughts? >>>> > <><><><><><><> >>>> > <><><><><><><> >>>> > >>>> > Not trying to be negative but riding hands off below 20 mph is >>>> probably >>>> > not gonna give you much useful information. I would expect to >>>> have >>>> some >>>> > swerving going on if I was riding like that no matter how well >>>> the >>>> bike >>>> > was set up. >>>> > >>>> > The check I suggest you try is from about 50 mph decelerating to >>>> about >>>> 25 >>>> > or 30 mph with hands just off the bars. If you get any head shake >>>> you >>>> > might have a steering head bearing adjustment issue. Or it >>>> could be >>>> > tires or tire pressure or suspension. This test should give you >>>> an >>>> idea >>>> > if the steering head bearings are too loose. >>>> > >>>> > When steering head bearings are too tight you'll get a weave when >>>> trying >>>> > to ride straight with your hands on the bars. What is happening >>>> is >>>> you >>>> > can't make little corrections because the bearings are too tight. >>>> So >>>> you >>>> > over correct in one direction and then over correct again in the >>>> other >>>> > direction. And that continues until something changes. >>>> > >>>> > Based on the miles (9,000) on the tires I'll guess the tires are >>>> now >>>> > causing issues. >>>> > >>>> > Best, >>>> > >>>> > Jeff Saline >>>> > ABC # 4412 South Dakota Airmarshal >>>> > Airheads Beemer Club www.airheads.org >>>> > The Beautiful Black Hills of South Dakota >>>> > 75 R90/6, 03 KLR650 >>>> > >>>> > . >>>> > . >>>> > __________________________________________________________ >>>> > The New "Skinny" Fruit >>>> > How This Strange 62-Cent African Fruit Is Making Americans >>>> Skinny. >>>> > http://thirdpartyoffers.juno.com/TGL3141/4f29fae02af4b661cf1st06vuc >>>> > >>>> >>>> Thanks Jeff. I don't have any wobble from 70 to 20 mph. I had an >>>> issue >>>> with some mid speed wobble but the preload and stering stem nut >>>> adjustments solved that. I am thinking the front tire may be >>>> wearing >>>> unevenly, which could cause the low speed swerve. I don't recall >>>> having >>>> this issue a month or two ago. i think some Gripsters are in my >>>> future. >>>> They seem to have good reviews and are long lasting for my >>>> commuting >>>> duties. >>>> >>>> [Non-text portions of this message have been removed] >>>> >>>> >> >> >> >> [Non-text portions of this message have been removed] >> >> >> >> ------------------------------------ >> >> List Sponsors - Dual Sport News: http://www.dualsportnews.com >> Arrowhead Motorsports: http://www.arrowheadmotorsports.com >> List FAQ courtesy of Chris Krok: http://www.bigcee.com/klr650faq.html >> Member Map: http://groups.yahoo.com/group/DSN_KLR650/app/peoplemap/view/map >> Group Apps: http://groups.yahoo.com/group/DSN_KLR650/grouplets/subscriptionsYahoo >> ! Groups Links >> >> >> > [Non-text portions of this message have been removed]
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slow speed swerve with hands off handlebar
On Thu, 2 Feb 2012 09:46:24 -0500 Kevin Crossett
writes:
<><><><><><><> <><><><><><><> Kevin, I would say a pressure change of 3% is more appropriate/realistic if you are a performance rider. So if you start at 30 psi (which I think is still too low), after some higher speed riding of maybe an hour, the pressure should maybe increase to 33 psi or so. If you only have about 1mm of life left in the tire now is a good time to change rubber. There are way too many variables involved in tire temps to use them for much in normal riding situations. Just like suspension, I'll venture a guess that better than 95% of riders can't/won't benefit or tell the difference of small changes. I remember being told that before you are good enough to benefit from suspension tuning you need to be able to make a fast run, 5 times over a few miles and keep the same exact line on each run. If you can't hold a line then you aren't good enough to really benefit. Now I'll suggest that most riders will think they are good enough to be in the 5% that can hold a line. Well, until they give it an honest go. Then, like me, they'll maybe admit they are a better rider in their mind than on the road. : ) Best, Jeff Saline ABC # 4412 South Dakota Airmarshal Airheads Beemer Club www.airheads.org The Beautiful Black Hills of South Dakota 75 R90/6, 03 KLR650 . . ____________________________________________________________ 53 Year Old Mom Looks 33 The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried http://thirdpartyoffers.juno.com/TGL3141/4f2aa98fdf205691dd8st06vuc> I thought so too but I can't get more than a five percent increase > from cold to hot on the front tire with higher pressure. The > manufacturer suggests 32 rear and 26 front for the KLR. James from > Horizons Unlimited suggests a 10 to 15 percent increase from cold to > hot. At 26 PSI in the front I only get to 27 psi hot which is less > than a five percent increase. On the rear I go from 32 psi to 36 > psi, a 12.5 percent increase. I understand that a lower pressure at > cold equates to a hotter tire and higher pressure at speed. I may be > completely wrong, but the physics sound right, especially as weight > is added or subtracted from the bike. It seems sound that tire > pressure should be adjusted for the load instead of running a > standard pressure in all road conditions. Of course things change in > the dirt, but I am concentrating on road use in this situation. > > As I said, I could be completely wrong. If so, I look forward to > being corrected. > > Cheers
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slow speed swerve with hands off handlebar
Yeah. I am shopping for tires and plan to replace front and rear soon. I would certainly not count myself in the 5 percent club. With just over a year of riding and no off road experience yet, I would say I have a lot to learn. Having good equipment helps. A new suspension system front and rear has helped with handling and removes another variable in the ongoing troubleshooting experiments I have been going through. The stock shocks just could not handle my ample girth. And finally getting my steering wobble under control helps too. Eliminating suspected preload issues with the inadequate shock removed them from the equation for the front stability issues I am starting to dial the bike in. New tires should help a lot.
On Feb 2, 2012, at 10:16, Jeff Saline wrote: > On Thu, 2 Feb 2012 09:46:24 -0500 Kevin Crossett > writes: >> I thought so too but I can't get more than a five percent increase >> from cold to hot on the front tire with higher pressure. The >> manufacturer suggests 32 rear and 26 front for the KLR. James from >> Horizons Unlimited suggests a 10 to 15 percent increase from cold to >> hot. At 26 PSI in the front I only get to 27 psi hot which is less >> than a five percent increase. On the rear I go from 32 psi to 36 >> psi, a 12.5 percent increase. I understand that a lower pressure at >> cold equates to a hotter tire and higher pressure at speed. I may be >> completely wrong, but the physics sound right, especially as weight >> is added or subtracted from the bike. It seems sound that tire >> pressure should be adjusted for the load instead of running a >> standard pressure in all road conditions. Of course things change in >> the dirt, but I am concentrating on road use in this situation. >> >> As I said, I could be completely wrong. If so, I look forward to >> being corrected. >> >> Cheers > <><><><><><><> > <><><><><><><> > > Kevin, > > I would say a pressure change of 3% is more appropriate/realistic if you > are a performance rider. So if you start at 30 psi (which I think is > still too low), after some higher speed riding of maybe an hour, the > pressure should maybe increase to 33 psi or so. > > If you only have about 1mm of life left in the tire now is a good time to > change rubber. > > There are way too many variables involved in tire temps to use them for > much in normal riding situations. Just like suspension, I'll venture a > guess that better than 95% of riders can't/won't benefit or tell the > difference of small changes. > > I remember being told that before you are good enough to benefit from > suspension tuning you need to be able to make a fast run, 5 times over a > few miles and keep the same exact line on each run. If you can't hold a > line then you aren't good enough to really benefit. Now I'll suggest > that most riders will think they are good enough to be in the 5% that can > hold a line. Well, until they give it an honest go. Then, like me, > they'll maybe admit they are a better rider in their mind than on the > road. : ) > > Best, > > Jeff Saline > ABC # 4412 South Dakota Airmarshal > Airheads Beemer Club www.airheads.org > The Beautiful Black Hills of South Dakota > 75 R90/6, 03 KLR650 > > . > . > ____________________________________________________________ > 53 Year Old Mom Looks 33 > The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried > http://thirdpartyoffers.juno.com/TGL3141/4f2aa98fdfd349b79d9st01vuc
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