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  1. #1
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    Bolt on cog disc hubs

    I've been reading up on these alot lately as I think its a good idea. A quick question...

    With the XT hub conversions Velosolo do they swap the axle out for a longer M10 170mm standard threded axle. I might be wrong but I'm thinking this kind of axle is only used with cup & cone bearing hubs? I take it you also need to use a longer axle when using a cartridge bearing hub like the Surly? Something like this maybe..

    http://harriscyclery.net/itemdetails.cfm?ID=2496

    Does anyone have any know how regarding this and know what 6 bolt hubs are compatable for this conversion?

  2. #2
    o.O Seggybop's Avatar
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    Any hub is compatible as long as you can get a longer replacement axle for it to compensate for the rear dropout spacing difference.
    If you don't mind squishing your dropouts a lot, you could get away with the original axle.
    mi yu mi yu

  3. #3
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    Should have read up a bit more before posting. Apparently you can use a standard axle for cartridge bearing hubs.

    http://www.fixedgeargallery.com/arti...mson/surlyhub/

    Think I might give this a go.

  4. #4
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    XT front hubs and cones are 9mm, not 10mm, so you'll need new cones as well as an axle.

  5. #5
    Senior Member mihlbach's Avatar
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    Quote Originally Posted by tm1210 View Post
    Should have read up a bit more before posting. Apparently you can use a standard axle for cartridge bearing hubs.

    http://www.fixedgeargallery.com/arti...mson/surlyhub/

    Think I might give this a go.
    I did the exact same thing following the same instructions. It worked out perfectly. The instructions mention dremmeling to get the cog to fit. I'm not sure what thats about. I didn't need to dremel anything for a 17t tomicog. With the surly hub and tomicog, I got a 45-46mm chainline, which is what I needed. With a tiny amount of dish you could get it a few mm inward.

  6. #6
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    Quote Originally Posted by mihlbach View Post
    The instructions mention dremmeling to get the cog to fit. I'm not sure what thats about.
    The first cog I used when I wrote the article was from Kogswell, a drilled-out Shimano bmx cog. Needed a little clearancing to fit over the Surly bearing rim. I use Tomicogs, now. Drops right on.

  7. #7
    A little North of Hell
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    Quote Originally Posted by oldfolksmashers View Post
    XT front hubs and cones are 9mm, not 10mm, so you'll need new cones as well as an axle.
    negative. XT M755/756 cones(and others)are M10

    http://fish.shimano-eu.com/media/tec...9830611908.pdf
    [SIGPIC][/SIGPIC]
    XXXI

  8. #8
    o.O Seggybop's Avatar
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    Quote Originally Posted by mihlbach View Post
    I did the exact same thing following the same instructions. It worked out perfectly. The instructions mention dremmeling to get the cog to fit. I'm not sure what thats about. I didn't need to dremel anything for a 17t tomicog. With the surly hub and tomicog, I got a 45-46mm chainline, which is what I needed. With a tiny amount of dish you could get it a few mm inward.
    on some hubs there's a ring protruding around the bearing cup area that is very slightly too wide to allow the cog to rest flush against the mounting surface, so in that case you need to grind around 1mm off of the cog's splines.
    mi yu mi yu

  9. #9
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    maybe its possible you could get a front touring wheel that has a larger spacing then 100?

  10. #10
    Paste Taster Retem's Avatar
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    just get a ss disc hub and run if flip flop
    I am dyslexic so bear with my posts.... [SIGPIC][/SIGPIC]

  11. #11
    mediocre member djeucalyptus's Avatar
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    Quote Originally Posted by Retem View Post
    just get a ss disc hub and run if flip flop
    Aren't most (if not all?) ss disc hubs 135mm OLD?

    plus, chainline gets messy with a bolt-on on a rear hub
    Quote Originally Posted by operator View Post
    This is the internet dude. You're free to be an asshat.

  12. #12
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    Quote Originally Posted by RonaldHaines100 View Post
    maybe its possible you could get a front touring wheel that has a larger spacing then 100?
    Three kinds of front hub:

    Standard 9x100mm spacing
    Through-axle 20x110mm spacing
    Pugsley 10x135mm spacing.

  13. #13
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    Quote Originally Posted by Retem View Post
    just get a ss disc hub and run if flip flop
    That would be the easiest solution but your talking about a 52mm or there-abouts chainline.

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