rbent Forum - bouncing rear rear tire

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bouncing rear rear tire (Read 1146 times)

Tom Nuchols

rbent member

Posts: 65

bouncing rear rear tire
Dec 22^nd, 2010, 6:23am

I replaced my rear tire on my Giro 2o0 when the old tire wore thru to the tube. The new tire (a Tioga 26X 1.25 has a decided bounce on smooth pavement when I begin to get around 20 mph. I place the bike on the stand and spun the wheel and it is definitely out of round. I used a mm caliper and measured around the tire and found that there is a 1.5 mm difference in the distance from the back of the rim to the top of the tire. I do not notice this on chip and seal for obvious reasons. Has anyone experienced this problem?
Tom Nuchols
Mt Pleasant

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bob wand Ex Member	Re: bouncing rear rear tire Reply #1 - Dec 22^nd, 2010, 4:11pm Tom, Take a close look as to how well the tire is seated on the rim.
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Tom Nuchols rbent member Posts: 65	Re: bouncing rear rear tire Reply #2 - Dec 22^nd, 2010, 7:24pm I have checked the rim and it seems to be tight all the way around. This is the first thing I though of. Tom Nuchols
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FlyingLaZBoy

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'16 Rocket, '12 KHS
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Re: bouncing rear rear tire
Reply #3 - Dec 24^th, 2010, 8:24am

I've had this happen when changing a tire -- it's probably a problem with how it's seating in the rim. Re-install the tire, checking the "fit" before fully re-inflating - pump it up to ~15psi, and spin it while watching. You can often "thumb-push" the tire into correct alignment at that point. Also check to see if your rim tape has shifted, interfering with the seating.

I had a video posted here on this a couple years ago, but apparently the upload to PHotobucket doesn't exist any more.

« Last Edit: Dec 24^th, 2010, 8:33am by FlyingLaZBoy »

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