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resolvedHi guys,
recently developed a problem with my rear wheel - it feels like it's kicking or jerking to the left when I'm slowing down. It's not so noticeable when I'm accelerating or going at a steady speed.
the spokes are all fine (or at least they're not broken and have tension) and the wheel doesn't appear to be visibly buckled.
Anything else I should be checking?
Thanks!
Check that the rear axle hasn't worked loose and is reasonably tight, try gripping the edges of the wheel and gently wobbling it to see if there is any play in the wheel bearings.
Check the quick release is on firmly. I had a big problem initially with my titanium frame - the QRs wouldn't grip properly - some good quality shimano QRs sorted that problem out.
Thanks for the advice guys, it's not QR so I'll check it's bolted in firmly and there's no give in the axle and report back!
Disk or rim brakes? Vee or cantilever brakes could be acting too much on one side and shifting the wheel as you brake.
Does same happen when slowing using front brake only?
Wheel not completely true? I know it's not buckled, but it can take an eagle eye to spot a small deviation, and it would have the effect you mention if you have vee or cantilever brakes.
Vee brakes - it's noticeable when slowing down without using brakes (when i stop pedalling)
So you feel it when you're free-wheeling and not whilst pedalling?
Can you stick the bike in a stand or get it held up - then turn the pedals and watch what happens when you stop turning them and the freewheel kicks in.
Could the freewheel be jamming and causing little skids?
I notice it more when I free-wheel, if i pedal slow enough that i'm not maintaining/increasing speed i feel it.
it's not a skid, but it feels like something is hitting my wheel and knocking the bike to the left.
I'll run through all the checks suggested above this evening and see what I can see.
Thanks for all the suggestions, hoping it's not a freewheel/ball bearing problem - I did get the freewheel/sprockets replaced about a year ago.
Bump in the rim
thanks for all the replies
the wheel buckled/warped in a couple of places, not too badly. its not really visible but i noticed it when spinning the wheel a blade of grass was leaning on the wheel which exagerated the bumps.
I'll loosen the brakes up and take my chances and get the bike upgrade i've been promising myself once i hit 500 miles!
Assuming this is a cup and cone hub, it is possible that there's a severe crack/pit in the bearing races. I had this with a mountain bike wheel once, and experienced exactly what you describe about it suddenly lurching, to me it felt as if someone had kicked the wheel and put me off balance every few revolutions. Took the hub apart and found literally a third of the cone was gone. Not dented, gone, like someone had chiselled it out. I have no idea how the wheel still turned without completely jamming but it did. If you feel the axle by hand and try to wriggle it and it stays firm and smooth you can rule this cause out. Thought I'd mention it.
I'm with allebong on this one, sounds like it could be a severe bearing or races problem. I'd take it easy on the downhills until you can get it checked out...
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