Join Date: Mar 2008
Location: The 'Wack, BC, Canada
Bikes: Norco (2), Miyata, Canondale, Soma, Redline
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You COULD relace the rim and spokes onto a new hub. Or you COULD get an 8 speed freehub to transplant onto the wheel. With that you'll also need a new longer axle meant for 130mm spacing as well as the nuts, spacers and cones unless you can fiddle and fudge the old stuff onto the new axle and work up the new spacing. Otherwise the least expensive way is to just get a new wheel. Especially if you would be paying for the new hub to be built into the old rim and spokes... IF the spokes are the right length. Frankly at that point it's either new freehub and axle or just get a new wheel.
And of course you're also looking at what sort of frame you have. Only steel frames should be cold set (fancy name for "bent") to fit the new axle spacing. Otherwise the whole upgrade is a non starter. And really that ain't so bad. There's very little "wrong" with 7 speeds for anything but the most serious of racing. Or if you have a frame that isn't steel and want to do this upgrade anyway then adjust the spacers or even make your own by opening up the holes in flat washers to allow the cassette to sit very close to the inner face of the dropout on one side and set up the other side with only enough spacers to require you to spring out the frame just a little to make the wheel fit. Likely you'd end up with a "custom" spacing of 127 to 128 mm but with some care you'd be able to use your old axle and still have it stick out enough to set in the dropouts OK. But this custom wheel will need to be re-dished to center the rim in your seat stays to get the tire and rim centered again. And obviously this wheel would only ever work in that frame really well due to the custom dishing.
Last edited by BCRider; 09-07-10 at 11:27 AM.