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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 05-24-07, 09:12 AM   #1
Mtbnomore
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Wheel wobble

I have a Raleigh Rush Hour that I haven't really screwed around with since I bought up until a couple days ago. I flip-flopped the wheel and used the bike on my trainer as a single speed (freewheel), and noticed when I took it off to flip it back that my wheel was wobbling. I've only ridden the bike maybe 40 miles since I bought it, so I can't imagine that the wheels have become untrued. My question is, how do I check to see if the wheel is just not on the drop out correctly, or if the wheel isn't true anymore?
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Old 05-24-07, 09:20 AM   #2
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If it is a loose bearing hub, also check to make sure that there is no play in the cones. It is a long shot but had one of my front wheels giving me the creeps for a while. Just hold the wheel by the axles and see if the hub has any side to side movement.
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Old 05-24-07, 09:20 AM   #3
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being crooked in the dropout won't make it wobble.
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Old 05-24-07, 09:21 AM   #4
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If it's not straight in the dropouts, the front of the wheel will be closer to one chainstay than the other, but the relationship won't change as the wheel spins. If it is "wobbling" getting closer to one chainstay at a certain point in the rotation, then it is out of true. I suppose one other cause for a different sort of wobbling might be a loose axel, but I think it's most likely out of true.
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Old 05-24-07, 09:22 AM   #5
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Quote:
Originally Posted by painthawg
If it is a loose bearing hub, also check to make sure that there is no play in the cones. It is a long shot but had one of my front wheels giving me the creeps for a while. Just hold the wheel by the axles and see if the hub has any side to side movement.

Edit: More to your questions, take your chain off. Bottom the axles out in the dropouts and see if there is wobble. that will remove the option of not being in the dropouts correctly. You can move it to the front fork for testing purposes if the rear dropouts allow the tire/tyre to rub the seat tube.
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Old 05-24-07, 09:30 AM   #6
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If it wobbles, it's out of true, or the bearings need to be adjusted. Putting it in the dropouts crooked won't affect how it spins, it will still spin true, just at a weird angle.
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Old 05-24-07, 09:32 AM   #7
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Quote:
Originally Posted by painthawg
You can move it to the front fork for testing purposes
Rear hubs are spaced 110-135mm depending upon the type and vintage of frame. front forks are almost universally 100mm.
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Old 05-24-07, 09:46 AM   #8
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Quote:
Originally Posted by mattface
Rear hubs are spaced 110-135mm depending upon the type and vintage of frame. front forks are almost universally 100mm.
I wasn't even thinking about it spinning true even if it was crooked. How am I supposed to keep track of spacing? (heads back to caffine dispencer) Definately not thinking well this morning.
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