Insane Bicycle Mechanic
Join Date: Mar 2008
Location: other Vancouver
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 98 Post(s)
Originally Posted by Booger1
I would like to add 24 spokes to a 24 spoke Shimano hub.Can I do this without trashing the hub?Will there be enough room for the spoke heads?Are the flanges bigger on 48 spoke hubs?
I would like to build Shimano hubs for my old touring bike but can't spread the frame to 145 for their touring hubs.They must have made some 130/135 spaced hubs at some point but I can't seem to find one.
Nope, not going to happen. A typical 24-spoke Shimano hub is low-flange... adding a spoke hole between existing ones will just about remove the flange from the hub. Even 36-spoke hubs have minimal extra material in the flanges- I once had a cheesy (non-Shimano) hub flange explode due to radial spoke stress.
If you look at a Shimano 48-spoke hub:
you'll see that the flanges are much larger than "normal". It should be possible to respace this hub to 135mm, also, since it uses a standard M10 x 1 threaded axle. Just remove the fat spacer, saw off 10mm of the axle, adjust, and go to town. You'll need a shorter skewer, probably, but that's easy.
Just curious: why a 48-spoke wheel? I've had no problems doing loaded touring with 36-spoke wheels. I'm not small, either: 6-foot-4, 210 pounds. And since I ride a recumbent: http://home.comcast.net/~jeff_wills/jeff-big.jpg
, a lot of the weight is on the rear wheel and there's no possibility of "unweighting" it on rough pavement.
Comcast nuked my web page. It will return soon..