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Old 04-20-14, 07:09 PM   #1
Crabtree4
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Help finding 135mm rear hub for new hybrid 7.9FX wheel

Having a new set of wheels built for my wife's Trek 7.9FX. I'm buying the parts, and I didn't learn enough, though, and ended up with a 130mm rear hub. Oops. Already have a 28 hole rim. I'm now trying to find a 135mm rear hub with a 28 hole pattern. I'd like to have a hub with quality comparable to Shimano Ultegra (from the road side). Oh, and the bike is a 10-speed, triple.

I'm just not having much luck figuring out MTB-type hubs. I see lots of 32 hole hubs, but just can't figure out how to find a quality 28 hole rear hub. Any suggestions would be appreciated.

[edit] not a disc hub...
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Old 04-21-14, 05:37 AM   #2
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Chris King Classic Rear MTB Hub - Wheelbuilder.com

or

DT Swiss 240s Standard MTB Rear Hub - Wheelbuilder.com

Search time using a popular search engine: approximately 10 seconds.

Last edited by badger1; 04-21-14 at 05:41 AM.
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Old 04-21-14, 04:24 PM   #3
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Silly question,but you're certain her stock hub is 135? With all the road bike bits on that bike,I don't see why they would've gone with 135 rear spacing. Note,my old cross bike's frame was 132.5 so it could take road or MTB hubs. Might be a good idea to measure her frame's rear spacing just to be sure.
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Old 04-21-14, 09:09 PM   #4
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Ive often wondered what rear spacing the FX series used. Many people on those with Ksyriums and other road wheels. But anyways, here is a cheap method:

If you have a Shimano hub, you can get a 135mm axle and two 2.5mm spacers - just swap out the axle and add the spacers. All Shimano hubs use the same axles, except for Dura Ace and XTR, IIRC
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Old 04-22-14, 12:45 PM   #5
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Actually, all you need is a 5mm spacer added to the NDS.
A QR axle is 11mm longer than the DO spacing, leaving 5.5mm protruding on each side.
You can fudge that and leave 3mm protruding on each side. That's enough to locate the axle in the do's.
IF you feel uncomfortable with that, add a 135mm axle.
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Old 04-22-14, 05:20 PM   #6
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Quote:
Originally Posted by Bill Kapaun View Post
Actually, all you need is a 5mm spacer added to the NDS.
A QR axle is 11mm longer than the DO spacing, leaving 5.5mm protruding on each side.
You can fudge that and leave 3mm protruding on each side. That's enough to locate the axle in the do's.
IF you feel uncomfortable with that, add a 135mm axle.

Yes, the 3mm was quite unnerving for me personally.
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Old 04-23-14, 08:14 PM   #7
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A high end Shimano hub from their mountain lineup would be worth exploring. I have a set of wheels with Deore XT hubs that seem to be very nice hubs.
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Old 04-25-14, 03:00 PM   #8
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A high end Shimano hub from their mountain lineup would be worth exploring. I have a set of wheels with Deore XT hubs that seem to be very nice hubs.
The OP already has the hub.
Since they are having the wheel built, the builder can EASILY add a 5mm spacer. (and longer axle if they aren't comfortable with 3mm protrusion on each end)
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