[dsn_klr650] plastic vs steel tanks: nklr

Jim Jackson · Post by **Jim Jackson** » Tue Jul 18, 2000 3:55 pm

>Your car sits on suspension springs compressed halfway, for years. >Tom (couldn't help it....)

Good point Tom, but I was under the impression that leaving the forks compressed for a long duration is more of an issue with the fork seals than the springs. Am I mistaken? Jim Jackson II (still learning) A13 - South Carolina ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

Peter Dahlheimer, MD · Post by **Peter Dahlheimer, MD** » Tue Jul 18, 2000 3:59 pm

i was thinking the same thing regarding trailering a bike with the forks compressed. i doubt the springs would suffer, but it seems like it would simulate real hard riding and create alot of pressure on the seals. -----Original Message----- From: Jim Jackson [mailto:axshon@...] Sent: Tuesday, July 18, 2000 4:55 PM To: DSN_klr650@egroups.com Subject: Re: [DSN_klr650] Husbands tales

>Your car sits on suspension springs compressed halfway, for years. >Tom (couldn't help it....)

Good point Tom, but I was under the impression that leaving the forks compressed for a long duration is more of an issue with the fork seals than the springs. Am I mistaken? Jim Jackson II (still learning) A13 - South Carolina ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com ------------------------------------------------------------------------ Old school buds here: http://click.egroups.com/1/7081/6/_/911801/_/963953705/ ------------------------------------------------------------------------ Visit the KLR650 archives at http://www.listquest.com/lq/search.html?ln=klr650 Support Dual Sport News... dsneditor@... Let's keep this list SPAM free! Visit our site at http://www.egroups.com/group/DSN_klr650 To unsubscribe from this group, send an email to: DSN_klr650-unsubscribe@egroups.com

Tom Myers · Post by **Tom Myers** » Tue Jul 18, 2000 4:44 pm

Hi Jim, Pete, If you have worn fork seals, sometimes the increased air pressure can ooze some oil out (but that indicates a seal problem). Fork seals should not leak regardless of the pressure inside. While riding, your forks (at say 6" of compression) generate the same pressure. However, while riding, the shaft is moving. While trailering, it's stopped. If the seal can handle the pressure in dynamic conditions (riding) then handling the pressure while motionless seems of no consequence. Tom ===============================================

>i was thinking the same thing regarding trailering a bike with the forks >compressed. i doubt the springs would suffer, but it seems like it would >simulate real hard riding and create alot of pressure on the seals. > > >-----Original Message----- >From: Jim Jackson [mailto:axshon@...] >Sent: Tuesday, July 18, 2000 4:55 PM >To: DSN_klr650@egroups.com >Subject: Re: [DSN_klr650] Husbands tales > > >>Your car sits on suspension springs compressed halfway, for years. >>Tom (couldn't help it....) > >Good point Tom, but I was under the impression that leaving the forks >compressed for a long duration is more of an issue with the fork seals than >the springs. Am I mistaken? > >Jim Jackson II (still learning) >A13 - South Carolina >

Ted Palmer · Post by **Ted Palmer** » Wed Jul 19, 2000 7:42 am

Tom Myers wrote:

> > > >...leaving them under compression overnight? Should I have at least > > >relieved them a bit? > > This is a common misconception.

[...] About metal springs maybe, but is of genuine concern where fork seals are involved. Mister_T

Ted Palmer · Post by **Ted Palmer** » Wed Jul 19, 2000 8:29 am

Seiler, Kevin wrote:

> Considering plastic tanks. Plastic tanks are NOT prohibited by the DOT > anymore.

[...]

> Seems he dropped the bike in a low speed > crash, the fiberglass tank split, and it caught fire, burning his legs > to the extant that they had to be amputated. Never did find a steel tank > for that bike.

Very much like the situation in Australia. Fibreglass tanks were not legal after (IIRC) a Ducati rider died under a bike which shattered the tank. I'm not sure if that covers carbon fibre tanks nowadays. Mister_T

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