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problem with kris holm rollos

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  • problem with kris holm rollos

    I have a koxx one light axle. They have bolts which have very large diameter, which do not fit through the rollo hole and they look much to short compared to the bolts that came with the rollos. What do I do and can they fit or do I have to buy a Kris Holm axle?
    Last edited by aidanteleki; 2009-11-27, 10:32 PM.
    My latest video: Unicycle Trials - Aidan Teleki

  • #2
    As far as I know, that is the only isis hub that will not work. Most of the isis hubs on the market are merely rebranded versions of the same hub. As far as I know, all of the other hubs use the correct m12x1.00 bolts. The standard k1 hub, nimbus isis, and older blue kh hubs were basically identical (apart from logos and 'KH' cutouts on the kh). Not sure about the ones quax makes... but I would assume that if they are truly isis and work w/ the kh cranks they should work
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    • #3
      Okay thank you! But I have one more question. The kris holm and nimbus hubs are wider in lenth, if I chose to put a kris holm hub on my k1 wheel set which has a small axle wil the spoke length be different? Would I have to buy a new pair of spokes? Thanks so much Aidan Teleki
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      • #4
        The flanges on both hubs are the standard 100mm spacing (although some of my previous information is incorrect, they do have some differences in design).
        Width for all intents and purposes should be the same, however you want to make sure that the flanges are the same diameter.
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        • #5
          Why not just drill out the rollos and get longer bolts if they turn out to be too short?

          Getting a new hub (and completely re-building a wheel) seems really excessive for getting a small cheap piece of equipment to work.
          My friends, love is better than anger. Hope is better than fear. Optimism is better than despair. So let us be loving, hopeful and optimistic. And we’ll change the world. - Jack Layton

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          • #6
            I have the same problem. I just got a new ADDICT unicycle and the axle bolts won't fit through the rollo disk. I'm probably just going to drill them a tiny bit bigger.
            Connor Hale.

            unicycle.com

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            • #7
              I don't know if you'll be able to find bolts that will be long enough.... i'd suggest you find that out before you modify the rollos and risk damage to your hub
              android power.

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              • #8
                Yeah, probably even drilling the Rollos, your bolts will not be long enough, and I'm really sorry to say that, but it's quite hard to find longer ISIS bolts

                I had the prototypes and they were different, had a smaller wall, so it was possible to use the old ones. Once the official Rollos were released we had a problem: The bolts were not long enough! Many riders had to wait some weeks to get the longer bolts manufactured for UDC and KH in Taiwan.

                That's why Rollos comes with bolts: The design needs it!

                The newer Kris Holm and Nimbus hubs and unicycles comes with the longer bolts I think.

                You can try to drill your rollos and find a longer bolt (try on ebay ), or switch to a KH or Nimbus hub.

                Remember that once you drill it, you changes the rollo disk structure and will probably loose your warranty.

                Anyway, thanks for this report. I'm going to show that to Kris and some friends in other brands to see if isn't possible to have longer bolts in they next batches!
                Last edited by pedrotejada; 2009-11-28, 06:11 PM.



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                • #9
                  Originally posted by OneWheelLess View Post
                  As far as I know, that is the only isis hub that will not work. Most of the isis hubs on the market are merely rebranded versions of the same hub. As far as I know, all of the other hubs use the correct m12x1.00 bolts.
                  As has been discussed before the ISIS spec. is for either M12 or M15 both with a pitch of 1.0. So the Koxx light hub is not incorrectly spec'd. I think you are right that it's the only uni hub with the M15 bolts, but that is a very common ISIS, and Octalink, bolt for bikes. It seems like Koxx made the decision based on dropping the weight of the hub.

                  Unfortunately, I think it will be unlikely to find a bolt longer that 14mm for this size. M15 bolts from the hardware store will probably not work due to the wrong pitch of 1.5. If you have an industrial supply nearby they may have it in stock or be able to order it for you.

                  If you end up going with a new hub I might be interested in relieving you of the extra hub, and offsetting the cost of the replacement. For my Muni I don't think I need anything more than the Koxx light.
                  Last edited by jtrops; 2009-11-29, 05:52 AM.
                  "A properly ridden unicycle is like an object in orbit: constantly falling but never landing." -Diogenes

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                  • #10
                    I have the koxx light axle... and my rollo's fit perfectly on the axle
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                    • #11
                      Well rollos with moments are concedered to be good street cranks right? so even if there cheap i still don't want to talk the chance of cracking my rollos and you cant find longer bolts of that size. But if you do tell me!!! That would be awesome!
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                      • #12
                        On that note HOW DO YOU LIKE YOUR NEW ADDICT UNI???????????? HOW MUCH DID IT COST?????!!!! i need to know!! did you order it from renegade? Sorry for all the questions. I was wanting to buy the gravity fork and the seat do you have an idea of how much that would cost? THANK YOU SOOOOOOO MUCH IF YOU CAN TELL ME!!!!!!!!!
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                        • #13
                          Okay which kind of hub? Thanks so much Aidan
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                          • #14
                            how dont you have the M15 bolts which DO NOT fit through the rollos?
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                            • #15
                              I'm sorry but I am very inexperienced what the hell are flanges?
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