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Hub skewers
#1
Just bought a set of fancy anodized skewers, didn't cross my mind that the rear one would be for 10 and 11 speed. I need to shorten it to fit my 7 speed hub and there is not enough spare thread. Does anyone know the standard thread for a 3/16" dia skewer rod? I could go to the hardware store and start trying nuts, but I thought I'd ask first.
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#2
IF the skewer is too long how would a different nut help you?
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#3
(02-19-2014, 02:07 PM)cny-man Wrote:  IF the skewer is too long how would a different nut help you?

Not using a different nut, just need to thread the rod a little deeper to allow the nut to tighten, then cut off the excess.
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#4
(02-19-2014, 06:26 PM)limey Wrote:  ..... thread the rod a little deeper to allow the nut to tighten, then cut off the excess.

Not going to happen.

The rods are hardened steel (the really expensive ones are titanium). The threads are roll formed before heat treating them. They are not cut threads, and it is not possible to cut more threads into the skewer.

The thread is M5 (metric, not inch); sorry I don't know the pitch for certain, but I believe the pitch to be 0.8mm - which is standard for M5.

The good news is that skewers are easy to shorten using an angle grinder or cut off wheel in a motor tool (like a Dremel).

Current rear skewers are made for road bikes are made for 130mm O.L.D. hubs; for MTB they are for 135mm O.L.D. hubs. There are ones available for other O.L.D. hubs.

7 speed hub could be 126mm, 130mm, 135mm or even 140mm (tandem) O.L.D. what is your hub? Purchase a skewer to match.
Nigel
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#5
Very interesting, for the price I paid, they are definitely not titanium. Didn't know they were not die threads uhmmmm. I'll think of something.
7 - Speed is definitely becoming a pain in the as... Thanks.
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#6
(02-20-2014, 09:52 AM)limey Wrote:  Very interesting, for the price I paid, they are definitely not titanium. Didn't know they were not die threads uhmmmm. I'll think of something.
7 - Speed is definitely becoming a pain in the as... Thanks.

Limey - it has NOTHING to do with 7 speed, it has everything to do with the O.L.D. (Over Locknut Dimension) of the hub (which is approximately the inner drop out spacing of your frame.

Personally, I have 7 speed hubs with 126mm, 130mm and 135mm O.L.D. and had a 140mm not long ago. 130mm is the current standard for road hubs, and is the standard for 8, 9, 10 and 11 speed road hubs.
Nigel
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