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2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

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  Topic Review (Newest First)
07-29-2016 12:43 PM
larry31
Tube ?

Quote:
Originally Posted by DPelletier View Post
Agreed; it's most likely the rim or tire.....but you are changing that tube, right?

Dave
I am going to change it. The tire & tube has been on this bike for over a year. I just pulled the tire off, and had the wheel trued. Still doing slight bounce.
BTW#1: It's not on my KLR. It's on my NX250. The tire is stock size BridgeStone TrailWing-39.
BTW#2: I had 2 different K270's from two different sources that did this on my KLR front. My son put a K270 on his XR650 Honda, and it bounces too. Nice thread on the K270, but in my experience, I don't think I'll get any more K270's from Kenda.
07-29-2016 01:23 AM
CheapBassTurd What the other guys just said.

My K 270 started doing that yesterday towards the end of a 1200 mile ride.
It moved up and down slightly while rolling it in the air on the axle. It wasn't real
pleasing to see this but the bead was solid all around even tho the mold was off
center a few mm.
Mounted it on the bike and the up and down got exaggerated at speed over the miles but
I didn't feel a thing other than wobble speed dropped from 90 to 82. The guys
here had the same reviews on the 270 about the soft compound being unstable at
speed so it wasn't thought about again.

The wear on 1/3 of the tire is a quarter inch more now and it can easily be felt at
30-40 mph, the excact symptom you described !! The heavy side affected the wear
pattern that likely matched the bounce while rolling along.

I'm replacing my tire, not tube on this one,
CheapMark
07-28-2016 10:56 AM
DPelletier Agreed; it's most likely the rim or tire.....but you are changing that tube, right?

Dave
07-28-2016 09:34 AM
pdwestman Larry,
I'll say NO. The tube can't bulge when it is contained with-in the tire. Most tubes do have a 'slightly weaker/thinner area'.

Some tires are just 'not quite right'. Especially the less expensive brands. One might try rotating the tire 180 degrees on the rim. Or reversing the direction of rotation? What brand and model of tire is in question? Maybe others have had similar issues with same model?
07-28-2016 07:25 AM
larry31
Tire/tube ?

I have a tube that has a bulge in it when blown up. It holds air OK.
Could this cause the front tire to bounce up and down slightly at about 35 - 50 mph?
The rim has been trued, wheel & tire balanced, and I checked the tire run-out by eye-balling it while spinning the wheel on my balance stand. Everything seems OK except it bounces slightly at 35 - 50 mph when riding.
The tube bulge is only odd thing I can see.

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