tire and tube questions

DSN_KLR650
revmaaatin
Posts: 1727
Joined: Wed Nov 26, 2003 3:07 pm

tire and tube questions

Post by revmaaatin » Thu Nov 20, 2008 12:22 am

--- In DSN_KLR650@yahoogroups.com, "revmaaatin" wrote:
> > --- In DSN_KLR650@yahoogroups.com, Jeff Saline wrote: > >Snipage-- > > > Top of the list is a digital tire > > pressure gauge. As a side note... last week I took two evening > classes > > by AC Delco. At the end of the second class I was hanging around
to
> > discuss a point with the instructor. The area manager gave me a > new tire > > gauge. I got it back to the shop and was going to test it for > accuracy. > > It didn't work. I don't mean it wasn't accurate I mean even 36
psi
> > wouldn't get the calibrated rod to slide out of the gauge. I
threw
> it > > out immediately and thought how lucky I was to have digital
guages
> that > > are accurate and reliable. > > > > more snippage > > > > > Jeff Saline >
Hate to say this, but I got to print a correction: it made sense when I typed it the first time... It's late, and I should be in bed... I got the pressures backwards here--His gauge read 32 on his bike and 22 psi on my bike--with target pressure of 32psi. My gauge read 32 on my bike, and 42 on his bike. The net effect: John was running 10psi over target pressure--due to a cheap gauge.
> > During my Great Divide Ride we stopped one morning to check tire > pressures. I thought it odd that "John's" bike tire had such a > different width of footprint than mine in the soft soils (same tire > pressures and same tire width, albeit, his was a D606 and mine a > K270, the footprint should have been 'close')--as well as an odd
wear
> pattern on his 606's. We exchanged tire gages. They were 10 psi > different at 32psi (desired). His gauge read 42psi on my bike,
mine
> read 22 on his tire. Somebodies gauge is lying to us. I first > thought it might be mine--as John's gauge was 'new'. > > We checked the station operator's gauge as well. It read 32psi. on > my bike, as did my own gauge. My gauge had been checked against
Jeff
> Saline's digital gauge before leaving, so I was confident it was > correct. John was confident, his was correct because it was 'new'. > > At the next NAPA store, I bought a new 'slide type' and a digital > gauge. Both read exactly the same as my gauge. When confronted > about his inaccurate gauge, John said, > > "What do you expect for (sic) 99cents?" > > sigh. John had been running 10 psi over 'desired' for some 4K miles > at this point. It should have been more obvious to us, as he had > commented that the dealer that did his tire exchange in Kalispell,
MT
> had put the tire pressure 10 psi lower than he had asked. (Now we > know why.) > > We found a trash can for the lying gauge. > > Just another pivot point in proper preparation. > > His overinflated tires did us no favors in the mud, but perhaps > helped significantly against a pinch flat while we were banging on > the rocks. That's what I keep telling myself.... > > revmaaatin. >

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