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  1. #1
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    Rear Shock Spacer Play on Riot

    Hi all,

    I recently noticed that the rear shock spacers on my Riot can move approximately .5mm horizontally. I replaced the shock hardware with a new set of 36x8 RS hardware (my shock is a RS Vivid Coil), but the play still remains. The shock bolt is tight and the brushings are still in good shape.

    It seems like the "top hat" style spacers on either side of the shock are slightly too small, allowing them to slide around. Is this kind of movement acceptable, or could it possibly cause damage to the shock/frame? Is there another kind of mounting hardware I could try that would work well with an RS shock?

    Thanks for any help.

  2. #2
    mjw
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    Quote Originally Posted by Phoenix864 View Post
    Hi all,

    I recently noticed that the rear shock spacers on my Riot can move approximately .5mm horizontally. I replaced the shock hardware with a new set of 36x8 RS hardware (my shock is a RS Vivid Coil), but the play still remains. The shock bolt is tight and the brushings are still in good shape.

    It seems like the "top hat" style spacers on either side of the shock are slightly too small, allowing them to slide around. Is this kind of movement acceptable, or could it possibly cause damage to the shock/frame? Is there another kind of mounting hardware I could try that would work well with an RS shock?

    Thanks for any help.
    Mine does the same thing.

    Ideally it would fit with no movement,.but also without any compression. I think this sort of movement is not uncommon however, and shouldn't cause damage. I suspect with the flex in the rear end of the riot, a little room for the shock to breathe is not a bad thing.

    A small shim washer on either side would help if you want to remove the play in the bushing top hats.
    • 2015 Kona Explosif Ti
    • 2015 Kona Process 111
    • 2018 Canfield Riot

  3. #3
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    Thanks for the info. It's unfortunate that Rockshox's hardware doesn't come with shims to adjust the width of the spacers. I would assume that a small washer between the spacer and the frame wouldn't have a change of damaging anything, correct? I may just leave it as is if the space won't cause any problems though.

    Thanks.

  4. #4
    mjw
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    None come with shims. I've found rockshox to be the worst in regard to bushing tolerance. Fox is a little better because they use plastic top hats over the metal thru axle piece. You could always swap out for fox hardware.
    • 2015 Kona Explosif Ti
    • 2015 Kona Process 111
    • 2018 Canfield Riot

  5. #5
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    Quote Originally Posted by mjw View Post
    None come with shims. I've found rockshox to be the worst in regard to bushing tolerance. Fox is a little better because they use plastic top hats over the metal thru axle piece. You could always swap out for fox hardware.
    I've had a difficult time finding any other kind of hardware in 36x8, but swapping hardware definitely sounds like the best option. Just disappointed that Rockshox's own hardware, when used with their own shocks, can't get a good fit.

  6. #6
    Oaktown Honkey on Strava
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    I have had the same issue with my DVO Topaz DU bushings. It seems that the Canfield rear through bolt is too small of a diameter, or the DU bushing hardware is too loose. When bike is at rest, if I almost pick up bike from seat post collar, I can feel play in rear Topaz DU bushing/frame bolt, using other hand. It is really annoying. I dont want to spend money on RWC bearing kit. Any suggestions? It does not affect ride quality at all. You cant feel it riding.

  7. #7
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    Interesting, I've since moved on from the RS coil and hardware to a DVO Topaz and DVO hardware. I can definitely say that the DVO hardware fits better than the RS stuff. The DU bushings and shock bolts fit well, and the spacers on either side of the shock have less slop. If you don't want to go all out on a RWC kit, a fresh set of DU bushings might help (assuming you haven't already done this).

  8. #8
    Oaktown Honkey on Strava
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    Yeah, new DU bushings every 4-5 months when I send to DVO for service. They kinda blame Canfield. Canfield says its DVO. Either the frame's shock bolt is not right, or the DU bushing is microscopically too large. Its got a little play when replaced each time, but then gets worse over 2-3 months. I was hoping someone had experienced this and had a fix. I may fork over $30-40 for a RWC rear needle bearing kit. We'll see after next DVO rebuild. I will post again here in a few months on this. OP above, describes horizontal play, mine is bolt moves forward/back inside DU bushing. I have NO side to side play. As I mentioned, you cant feel it while riding, so that is good.

  9. #9
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    If you're getting new bushings that frequently and they all have the same problem, then it sounds like something might be up with the shock bolt. Does the front bolt fit well? If you're conformable doing this, you could try swapping the bolts and seeing if the play moves to the front. I'm not 100% on if this is safe, but it should confirm if your rear shock bolt is undersized. If Canfield offers replacement shock bolts, picking up a new set might be the easiest option.

    Also, I know it's a bit off topic, but would you mind sharing your settings for the Topaz? DVO's guide is rather vague and I've had a hard time nailing down some base settings for CBF on the internet.

    Thanks.

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