- Can’t screw in my rear mech. Suggestions?
Tried to fit a rear mech onto a brand new Cove Handjob frame last night but it just wouldn’t screw in. Looks to me like they’ve gone a bit over the top with the paint and it’s all over the threads in the frame. Anybody got any suggestions as to what to do? Would a little bit of paint stripper work? Would a bike shop be able to sort it out, with something like a re-tapping of the thread?Posted 9 years agoTandemJeremyMember
Get an old long bolt the correct size, put a nut on it, cut slots along the thread, file a taper on the end, take the nut off to clean the thread and you have a home made tap that should do the job – wind it in the hole half a turn in quarter back. Needs a bit of mechanical sympathy to avoid ruining the threadPosted 9 years agojonathanSubscriber
Rear mech is 10×1 (which is “M10 fine” I think), “normal” M10 would be 10×1.25 (“coarse”)… I think!
A threaded rear axle (say from a shimano QR rear hub) will be 10×1 as well – which would make a good basis for a homemade tap. And also a homemade hanger straighter apparently 🙂Posted 9 years ago
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