Hi all,
Recently started cycling again after not cycling for a long time. My dad used to maintain my bike but I’m living far away now and want to learn to maintain and work on my bike myself.
I bought a used Pinarello Dogma with Cosmic mavic carbon wheels a couple months ago, and have done about 800km of cycling and noticed the rear wheel has a sleight wobble. Is this too much wobble, and should I bring this to a mechanic to true / straighten the wheel or am I over worried and can I ride it like this?
Any help or input would be very much appreciated!
Too much rear wheel wobble? Mavic Cosmic carbon wheels and spokes
byu/Valislife95 inbikewrench
by Valislife95
8 Comments
certainly room for improvement. Id recommend getting that trued up. IME mavics tend to come back to true nicely unless the rim itself has been bent and its not just a spoke tension imbalance.
u can ride like this, but it needs adjustment. way to much play
It wont be too much wobble to ride properly but It would be too much for my personal inner monk! Luckily it’s not a big deal to straighten such little wobbles out by youself! You already installed a Ziptie so you can locate the point of the biggest wobble, at this point tighten the opposing two spokes half a turn each and check again. Repeat til the wobble is straightened out! I have to do this every other week because my rear wheel cstches a wobble every now and than through excessive trail riding.
That’s quite a bit of wobble, especially for a rim brake as they really want a true wheel. You can buy yourself the spoke tool and watch a few videos on wheel truing, and if you can’t get it right, then take it to a bike shop to true.
One thing I have done to make this a little easier is to ever so slowly creep up on the rim with a sharpie so that it touches just/only on the part closest to the frame, then adjust. Can do this on the other side too.
Make very slow adjustments, remember or note by 1/4 turns or whatever you are comfortable with, so that you can back out an adjustment if you go too far.
When done, pen marks wipe off with alcohol and a paper towel.
It might be an optical illusion, but it looks like your brake surface is concave. You might want to make sure that brake track isn’t in the process of failing.
My goal for high quality wheels like that with rim brakes is within .5mm side to side an 1mm radial.
I’m lazy and go 1mm and 1mm for disc brake rims.
I do not recommend trying to true this rim yourself without witnessing a demonstration first. You can easily make it worse by over-simplifying the process. That wheel needs to be trued, but you can ride it until you have time to take it to a shop. Find one that will let you watch. You can learn DIY, but this wheel is not a good one to learn on.