Mystery flat tire
#21
Rim, tire, rim lock, and tube dynamics are interesting. I've had 4 KLR600/650's over the years and never ran rim locks with even the most aggressive big knobbies like 606's and MT21's. Granted, I never ran lower than about 21-22 psi for the front and 25 for the rear, but I never spun a tire on the rim or ripped a valve stem. The few times I've flatted because of puncture or pinch flat, the tube valve stem didn't tear or rip even with a stem nut finger tightened on the rim. The only time I've actually torn/ripped a valve stem was with rim locks, but understand that was during enduro competitions where I had to run on the flat for some time to either finish or get to a gas stop...but even then it wasn't that often. It strikes me that valve stems on good motorcycle tubes are pretty darned durable.
#22
M
#23
Hmmm weird, I run 22 and Ive never had a flat. Nuts are locked down after each tire change. 4 years and 13,000 miles and no flats and I ride of all terrains. Have I just been lucky?
#24
Same for me, guess the higher pressure helps a lot.
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