Any reason not to get a disc compatible hub?
02-02-10, 06:20 AM
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Any reason not to get a disc compatible hub?
If you are building up a rear wheel for a bike that is not disc compatible (no disc mounts on rear triangle), but you plan to possibly one day transfer that wheel to a bike that is, is there any disadvantage to building up the wheel using a disc hub and a rim-brake-compatible rim vs. using a non-disc hub?
The hub in question is a Shimano XT and the rim is a Rhyno Lite if that matters.
[I tried a couple searches as I know I'm not the first to ask this but the BF.net search function hates me.]
The hub in question is a Shimano XT and the rim is a Rhyno Lite if that matters.
[I tried a couple searches as I know I'm not the first to ask this but the BF.net search function hates me.]
02-02-10, 06:50 AM
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There's a little more dish in the rear wheel, but also you have a larger flange. I've had that setup on my main wheelset for years.
02-02-10, 07:37 AM
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02-02-10, 07:41 AM
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My question exactly, If anyhing, making room for the disc would move the left flange inboard reducing the dish. But the answer to the OPs question is no, there's isn't any reason not to buy a disc compatible hub, if you're willing to spend a bit more to provide for a future option.
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Last edited by FBinNY; 02-02-10 at 08:19 AM.
02-02-10, 08:04 AM
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A rear wheel with a disc hub will have LESS dish than a non-disc (all other things being equal), for the same reason that a disc hub on a front wheel will require some dish, whereas a conventional front wheel has NO dish. So in regard to dish, a disc hub is an advantage on the rear wheel, a disadvantage on the front.
For the OP, the only real issue is a disc hub is a few ounces heavier than a non-disc hub (all other things being equal). And if you're into aesthetics, it looks kind of funny to have a disc hub without a rotor on it. But that's it.
For the OP, the only real issue is a disc hub is a few ounces heavier than a non-disc hub (all other things being equal). And if you're into aesthetics, it looks kind of funny to have a disc hub without a rotor on it. But that's it.
02-02-10, 09:32 AM
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Well said Well Biked. I was just going to reply but you covered it nicely.
02-02-10, 09:56 AM
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Awesome. Thank you all for your quick and helpful replies. I just ordered a new [disc compatible] hub. 
One more question- Should I go ahead and put screws into the 6 disc holes even though there is no brake disc installed to keep dirt and stuff out or is it okay to leave them open and just clean them out before installing a brake disc at some point in the future?
One more question- Should I go ahead and put screws into the 6 disc holes even though there is no brake disc installed to keep dirt and stuff out or is it okay to leave them open and just clean them out before installing a brake disc at some point in the future?
02-02-10, 11:13 AM
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If you haven't it's the work of minutes to cut a groove into a screw and use that to clean the threads.
But yeah, having the screws in there would make installing a disc a slightly faster process.
And maybe there are some minor mechanical advantages to the actual mechanical interface
02-02-10, 11:13 AM
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Yes I would put the bolts in to keep the treads in the hub clean.
02-02-10, 11:30 AM
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I recently got non disc hubs, but that was only because (a) they were dirt cheap, and (b) the bike I will probably be riding for a long time does not have disc tabs on the rear of the frame. If a set of disc hubs had been cheaper, I would have gotten them instead.
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