Bicycle Mechanics - Problems with loose rear wheel

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View Full Version : Problems with loose rear wheel


DenverBikeBoy
09-21-04, 03:17 AM
My road bike's rear wheel (after changing a flat) is coming loose if I just slap it in a downward motion, even after it's screwed in with the center screw adjustment piece. What's the deal, do I need to replace the entire locking mechanism or what? Is this a common problem or is my bike just ********?

It happened after I changed a flat, and locked the bike to a rack. Ater securing the bike, the wheel popped out, and I noticed that the wheel wasn't all the way into the frame after tightening the adjustment piece, and it won't stay in the frame unless it's tighetend all the way (which I don't want to do, because that totally sucks). And like I said it just pops out when it's tightened to a more satisfiable torque, but comes out without much effort when I hit it with my hand.

Just want some advice on this problem, I'm going to take it in my bike shop tomorrow. I also just wanted to see if someone could help me before I take it in and spend some money to fix it.

Later.


Retro Grouch
09-21-04, 04:10 AM
I can think of a couple of possibilities.

The first is that your axle is too long. Your axle has to seat securely in the dropout but not extend past the dropout by even the tiniest amount. If it does, the quick release will bottom on the axle insted of clamping against the dropout.

Bear with me on the second one because I don't know you and it's more common than most riders think. Lots of riders don't know how to secure their quick releases. 1. Hold the lever part so that it is parallel with the axle. 2. Tighten the nut on the opposite end until it is finger tight. 3. Push down on the lever part until it is parallel with your bike frame. If you use this procedure, you will tighten your wheel much more securely than if you use the quick release lever like a wing nut.