ISO Hubs / Bolt on cogs

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  • I thought it might be a good idea to start a thread where I could collect all the information on ISO bolt on hubs and cogs.

    An example of an ISO cog:

    They use the same 6 bolt system as disc brakes. In my experience this is a superior system as it removes the chance for cogs to slip, come loose or hubs to be come de-threaded.

    I've made a little list of what I know to be available, OTP as it were:

    NOTES
    '*' Indicates a non ISO, proprietary cog has to be used.
    '#' indicates it is no longer made, so you may only be able to find them second hand.

    Livery Design Gruppe

    Phil Wood

    Halo Fix-G (*)

    Charge Shaker (*#)

    Hope Fixee
    (being released in mid 2014 according to Hope)

    Mack Hubs

    LeVeL(*)

    Victoire (*)

    Shimano XT M756
    (can be converted in about 10 minutes or bought as a pre-prepared conversion from Velosolo)

    It may be possible to re-space the following with the use of a surly conversion axle:

    Surly hub

    The Surly Ultra Hub

  • using Antti Konga cog though..

  • I had no idea that existed, that look amazing!

  • Actually are they sealed bearings?

  • I've used the Shimano / Velosolo setup for a few years.

    Not much to look at but shits all over dealing with chainwhip, lockring etc.

  • There is a bolt on cogs thread here, although this one is prettier!

    Edit: Also, presumably any front ISO disc wheel can be adapted by getting a solid axle and adding 20mm or 26mm of spacers.

  • ^ If its cup and cone, yes. If its sealed bearing, its possible but it depends on the hub.

  • this got me thinking, would it be possible to machine a cog with a shimano centerlock interface? good idea or bad idea?

  • ^ isn't that what the Victoire one is?

    What's the smallest cog you can run?

  • 15 on ISO, but you have to use counter sunk bolts to get chain clearance

  • ^ i mentioned the Halo Fix-G in my first post.

  • The Fix-G is the better solution if you tend to change your gearing often (winter, summer, road, off-road). Takes a few seconds to change the cog rather than the faff of dealing with 6 bolts (I have used bother systems)

    Both allow chainline adjustment although Fix G gives more.

    Only potential downside to the Fix G is whether the cogs strips through the spline but mine is still fine after more than a years use.

  • ^ isn't that what the Victoire one is?

    What's the smallest cog you can run?

    not quite the same, they use a proprietary splined interface too but that makes you tied to their brand. Centerlock would mean more options, not lots but more than one.

  • is whether the cogs strips through the spline but mine is still fine after more than a years use.

    You could potentially strip the thread on the lock ring too

  • meh gfix shmefix. 6 bolts is great!

  • You could potentially strip the thread on the lock ring too

    It is not really a lock ring though is it and doesn't need to be done up that tightly (how may people have a problem stripping the thread on their cassette hubs as it is the same thing)

    And the chance of damaging the splines is reduced by use of cogs with 7mm base.

    Anyway, having had both formats I prefer simple spline over 6 bolts.

  • I was very very close to buying the level recently...went for phils instead! not sure if I fucked up.

  • Iso phils? if so then no

  • I'm going for a Halo Fix-G on my next wheel, in a month or so. Looks pretty indestructible. Threaded too many hubs over the years.

  • Reckon there's any need for double sided fix-g if you aren't really going to run two cogs at once? I was going to do this version so I had a back up but maybe its unnecessary.

  • nope

  • I had no idea that existed, that look amazing!

    shuri is probably the most used bolt on cog system in Finland. The price to value ratio is great. Mine are rolling like new after having to endure one winter and I'll expect them to do so in the future.

    Although a friend of mine has had problems with the bearings so quality may vary.. Replacing bearings or adding more bearing lube should solve the problem.

  • fixie inc. Shuri

    running these on my steamroller. cogs available too from the same shop.

    http://www.only-highend.biz/epages/63221­174.sf/en_GB/?ObjectPath=/Shops/63221174­/Categories/Antreiben/gear/fixed

    I ordered a set of these the other day, looking forward to seeing what they are like

  • presumably any front ISO disc wheel can be adapted by getting a solid axle and adding 20mm or 26mm of spacers.

    After the Shimano M756 & M525 with their abnormal (for a front hub) 10mm axles, 15mm through-axle is by far the easiest to convert, and the hubs already have big bearings which should tolerate the higher loading better than the titchy bearings found on some 9mm XC front hubs

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ISO Hubs / Bolt on cogs

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