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Disc brake Hub compatible with rim brake wheel?

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Disc brake Hub compatible with rim brake wheel?

Old 09-15-13, 07:18 AM
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ChrisM3
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Disc brake Hub compatible with rim brake wheel?

So I broke a spoke on my <1 yr old 7.5 FX. Spoke breakage became a chronic issue with my Jamis Coda Elite until I sold it earlier this year. I want to get a strong rear wheel with 36 spokes (as I am 260#), but that doesn't break the bank.

The existing rear hub has 135 mm spacing. I find the Shimano XT hubs to be the best bang for the buck, but there doesn't seem to be a non-disc Shimano hub with 135 mm spacing in the XT or 105 range (Shimano FHM590 seems on the cheap side). Is there any problem having a rim brake wheel built with the disc-brake features on the hub? It seems like the available space is there, and that the disc brake features, although unused, will simply be along for the ride. If this is OK, any recommendations as to whether to use 6-bolt or 'centerloc' hubs for compatibility with potential future bikes?
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Old 09-15-13, 07:43 AM
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jimc101
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For current XT hubs, the M785 is the current 135mm OLD hub, this doesn't come in a non-disc version, but is supplied with a cap for the centerlock splines, so if you don't fit a rotor, the area is covered. 105 (5700) are only currently available in 130mm OLD, so won't suit your requirement, would expect 5800 to have disc hubs in 135mm.

For having a disc hub on a non-disc wheel, there is no issue with this, and it does give some future proofing, for 6 bolt vs Centerlock, both are good systems, the Centerlock is easier to work with, as it only requires one bolt to be tightened rather than 6 for 6 bolt. As Centerlock is a Shimano design, would expect this to be around for many years to come.
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Old 09-15-13, 11:54 AM
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Thanks for your reply! Is there a new model of the M785 available? Any other recommendations on 36 spoke rear hubs? I was planning to get a velocity a23 rim, as the dyad doesn't come in black with a machined sidewall. Any rim recommendations?
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Old 09-15-13, 12:31 PM
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lots of mass produced hubs have the 6 bolt disc mount , and a rim with a brake track .

you can leave off the disc if you wish..

visit the LBS and look.

26" and now 29er /700c..

you can get a 105 hub and rebuild the axle with a 135 one as well ..

I like 10mm x 1, tpmm steel axles for this reason, easy to work with..

spoke breakage may just be a spoke issue,. maybe to keep the price low,

the company that made the wheels for the company that makes the bikes with Jamis
painted on the frame saved money on the spokes ,

now you can have them all replaced with a top brand , Retail average $1 each spoke.

Last edited by fietsbob; 09-15-13 at 12:38 PM.
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Old 09-15-13, 12:33 PM
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The M785 series is over a year old now, so should be easy to source (on the basis that your countries distributor brings them in) For other hubs; the availability of aftermarket hubs is diminishing every year, as most wheels now are factory builds, other than Shimano, there are option, but they will often be much more expensive, like Chris King, Phil Wood, Hope and others.

For rims, Velocity seem to be well liked, plenty of options as well, like Sun-Ringle, Mavic, DT, H Son, Rigida and others, all depends on your budget.
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Old 09-15-13, 04:52 PM
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ChrisM3
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Originally Posted by jimc101 View Post
The M785 series is over a year old now, so should be easy to source (on the basis that your countries distributor brings them in) For other hubs; the availability of aftermarket hubs is diminishing every year, as most wheels now are factory builds, other than Shimano, there are option, but they will often be much more expensive, like Chris King, Phil Wood, Hope and others.

For rims, Velocity seem to be well liked, plenty of options as well, like Sun-Ringle, Mavic, DT, H Son, Rigida and others, all depends on your budget.
My budget is in the range of:
Shimano FH-M785 XT Hub (36H)
Velocity Dyad Rim (Silver - machined)
DT Swiss Competition Butted spokes (does this mean it is 2 mm at the ends, 1.8mm in the middle?)
DT Swiss Brass Nipples

The well-known hubs you mentioned are more than 2X the Shimano.

I'm going to see what my LBS can do for me when I bring my bike back. I repeatedly asked their two salesmen if a 24 spoke wheel would have a strength issue and they assured me it was not. I'd like to try and get the upgraded wheel at a discount. They are a rather large bike shop (Brands in Wantagh, NY), and I've been a very good customer.

Thanks for your guidance!
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Old 09-15-13, 09:36 PM
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Originally Posted by ChrisM3 View Post

The existing rear hub has 135 mm spacing. I find the Shimano XT hubs to be the best bang for the buck, but there doesn't seem to be a non-disc Shimano hub with 135 mm spacing in the XT or 105 range (Shimano FHM590 seems on the cheap side).
You didn't look hard enough.

http://productinfo.shimano.com/specifications.html

Click on 'MTB / TREKKING'
Click on 'Freehub (Standard)'
Click on 'SUBMIT'

When the results come up you can click on the 'Model no.' to see an image.

A Google search reveals plenty of shops selling these non disc hubs.

FH-M = MTB model
FH-T = TREKKING model

Last edited by cobba; 09-15-13 at 09:42 PM.
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Old 09-16-13, 07:54 PM
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ChrisM3
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Originally Posted by cobba View Post
You didn't look hard enough.

http://productinfo.shimano.com/specifications.html

Click on 'MTB / TREKKING'
Click on 'Freehub (Standard)'
Click on 'SUBMIT'

When the results come up you can click on the 'Model no.' to see an image.

A Google search reveals plenty of shops selling these non disc hubs.

FH-M = MTB model
FH-T = TREKKING model

Wow that resource is awesome! I've never seen that one before. Really easy to see all of Shimano's offerings. Thanks!
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