Need some help diagnosing/solving a problem with my Canyon Endurace. Since starting to cycle for the spring, I’ve noticed there’s a slight bump/bounce in my rear tire. The through-axel, gearing, and wheel truing are all fine, but the bike bounces a bit, especially when going downhill. I think it’s a tire/tube issue, where the tire seems to be bulging out a bit on half of the tire (see pictures). I’ve tried deflating, re-seating, and re-inflating the tire, but that doesn’t seem to fix it for long.
Has anyone else experienced this? What would you recommend? The tire and tube are both pretty new.
by DarthDeepState
12 Comments
mix up some soapy water and apply it to the bead in the places it’s uneven, then inflate to max pressure. If that doens’t work, I’ve been known to apply a tiny bit of grease to the area, but only as a last resort.
Just use more pressure. It’s even ok to go beyond the “max” to get it to pop onto the bead as long as you don’t ride like that. Might want to be careful if they are hookless, but for hooked rims you can add a lot of pressure.
Use some common sense about how much pressure you use, but putting a little bit of extra air is a good way to get the tire properly seated.
Check for circular true if the soapy water trick doesn’t do it. When doing the soapy thingy, leave some psi’s in there to help you move the tire around the rim.
& no, the tire will not pop out because of soap. SMH
I bet your rim tape has moved.
the tire needs to be sent back because the lip is not molded well. there are some pros who would take a blade and cut around the lip area to get it seated properly but its very risky because if you cut too much, you can pop a tire. Schwalbe has great tires but many of them wre like this. I have 50mm tires from them with the same problem but I feel nothing since it’s a big tire.
Just some additional information to the other good tips: Your second picture “lip popping out” is how it is supposed to be. The first picture “no lip” is the part where the tire is not completely seated. And this is where you would remove the tire again, apply some soapy water to the rim, put the tire back on, pump up to max as fast as possible and hope that it pops into place (i.e., such that the lip is visible everywhere). I’ve only had to use the soap trick twice, but it worked like a charm for me.
This just happened to me on an old tire. The wire bead had somehow snapped on one side so it wouldn’t hold bead. That is unlikely here with a new tire but may be worth pulling off and look to see if bead somehow is snapped
Your tire isn’t seated properly.
Schwalbe easy fit (or soap water 😅) on the tire bead/sidewall, and flup…..
https://preview.redd.it/qq057vwn4vpe1.jpeg?width=600&format=pjpg&auto=webp&s=e7996a3629f6abdb5b050c2af2e67693b654af65
Let all the air out, pop the bead, and then slightly over inflate it. Should pop on properly
I had this exact experience on a previous bike when I used folding Kevlar-bead tires on nearly hookless rims (they had a shallow channel for the bead, but not much of a “hook”). The rear tire in particular would work its way out of position as seen here and cause bumpiness and even pinch flats. In my case I didn’t care too much about performance and switching to wire bead tires solved it. Not saying that’s the case here, unless those happen to be hookless rims with folding tires.
What pressure are you going to?