Shifting rear wheel problem
03-18-19, 06:12 PM
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Shifting rear wheel problem
Hi All, looking for a bit of help, with an old ish alloy frame. Good nick. Stright frame, no damage. When im trying to but lots of power in(for me hahah) my rear wheel mis-aligns. Ive updated my QR to a internal version and its on tight as, which only helped a bit. Ive noticed the threaded axel bit has a fair bit of room in the dropout, is there anything I should look at to.help with this? I cant post pics later
03-18-19, 06:25 PM
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Not sure what you mean by “has a fair bit of room in the dropout”, but if your threaded axle is too long, it’s possible that your QR is clamping on the axle and not on the dropout. Slippage will ensue
03-20-19, 05:29 PM
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03-20-19, 06:33 PM
#4
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There needs to be enough axle present in the drop out as well. 2mm from outside of drop out is plenty. My personal rides have about 1 mm. A strong bite with good serrations and high clamp force on the skewer should do the job. My son had this problem on one of my vintage rides and we never resolved it. Once he changed to an aluminum frame the problem went away.
Obviously you have an aluminum frame.
Obviously you have an aluminum frame.
03-21-19, 06:16 AM
#5
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If the bike is quite old and previously mistreated it's possible that the right dropout may be damaged by repeated slippage, and no longer gives the nut on the axle a flat surface to grab. sometimes the only fix short of frame repair is a toothed washer on the inside of the dropout.
03-21-19, 06:56 AM
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This is a vertical dropout, not the horizontal type I assumed from your OP, so the axle slippage is minimal. As noted it is indeed oversize for the axle and a possible solution, beyond a tighter qr skewer, would be to shim the dropout to take up the extra space. A strip of thin sheet metal could be cut to fit.
03-21-19, 07:08 AM
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I wonder where within the range of the drop out's being overly wide is the best wheel/frame alignment to be found. Andy
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