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  1. #1
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    Anyone with seat stay "bushing" play? Rune only please.

    When you guys (and gals) are picking up your bike by the seat (taking it off of a bike stand, for instance), do you notice any play stemming from your smaller seat stay bushings?

    I've developed a cool product (well, I think it's cool) to help stiffen up the Rune frames.

    If you have a minute, please email me at obsidianeng (at) gmail (dot) com if you're interested in testing it.

    Thanks!

    -Sander
    Last edited by sandersbigbike; 11-17-2011 at 06:58 AM.

  2. #2
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    I realized i was a bit vague in my original post, so I've since edited it. I need a few people who ride their Rune's often to test a part that I designed. I think you'll find that the bike is much more solid on bigger hits, and even slightly stiffer when really getting on the pedals to get up a hill.

    Here is the CAD assembly of the two rockers:



    Thanks!

    Email is best, but you're welcome to PM me on here also.
    obsidianeng (at) gmail (dot) com

  3. #3
    FM
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    So, you're making custom rockers with some sort of self-aligning bearings at the seat stay pivots?

    My frames remains trouble-free, so I'm probaby not a good testing candidate

  4. #4
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    Yes, basically replacing the small Igus bushing at the seat stay with a larger bearing. I often found myself going through these bushings, and perhaps got a rocker with my Rune that had poor tolerances, and as a result always had slop at the seat stay.

    Even if you don't have the problem, it may be a good data point to compare it on a trouble-free model!



    -Sander

  5. #5
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    So, a solid thru-axle in place of the seatstay bolts?

  6. #6
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    If you're going through the troble why not put some sort of bearing at the other pivot also? I realize it will require a new axle (possibly press into the bores the bearings rode in) but seems like it might be worthwile to explore.
    "Listen here you beautiful *****, I'm about to **** you up with some truth"

  7. #7
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    Jwind,

    The rear bearings use the stock rear seat stay hardware, that was one of the nice things about that bearing in particular.

    Acme54321,

    I've considered that, and have a version with a bearing drawn up, but I wanted to make sure this version works first. I was thinking of having an XC / AM version (like this design, light duty) and an AM / Light FR version (like the version with the main pivot bearings). The only downside of that version would be a significant weight increase.

  8. #8
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    Quote Originally Posted by FM View Post
    My frames remains trouble-free, so I'm probaby not a good testing candidate
    Not me

  9. #9
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    Quote Originally Posted by Nescafe View Post
    Not me
    This is the part where FM will say you are just whining and that you should be looking for a solution to the problem. Remember, his frame is trouble free. You must be doing something wrong.

    That wear sucks for you BTW. How old is your frame? Did you follow the very technical finger tight plus a 1/4 turn instruction?

  10. #10
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    Quote Originally Posted by kmac999 View Post
    This is the part where FM will say you are just whining and that you should be looking for a solution to the problem. Remember, his frame is trouble free. You must be doing something wrong.

    That wear sucks for you BTW. How old is your frame? Did you follow the very technical finger tight plus a 1/4 turn instruction?
    My frame is 15 months old.
    Buy the time all these issues came to light and I loosened everything up, it was to late. At this point I don't think it really matters how tight or how much grease if any you use, you will still get ware. Except for FM of coarse.
    I have already epoxied an old bushing flange in the non drive chain stay.

  11. #11
    FM
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    Quote Originally Posted by kmac999 View Post
    This is the part where FM will say you are just whining and that you should be looking for a solution to the problem. Remember, his frame is trouble free. You must be doing something wrong.:
    My frame really is trouble free.
    Just went to change the bushings last night, alignment was spot-on and embarrassingly old, ridden hard bushings were in surprisingly good shape.

    Just now finished putting on a 66 evo rc3

    Seriously...don't be pissed at me just 'cause I got one of the good ones!
    Last edited by FM; 11-17-2011 at 11:09 PM.

  12. #12
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    2012 ti 66?

    WHat's the weight penalty on that thing compared to the Float. And how didi it effect your HA/BB height?

  13. #13
    FM
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    Good deal Alert!

    Quote Originally Posted by Jwind View Post
    2012 ti 66?
    Threadjacking!

    Maybe I'll start a separate thread after I get some ride time...
    Anyways, Saw that HucknRoll had 2011 66 rc3 Evo's for $347 shipped. Plus there are discount codes. Identical to the Ti model, but 3oz heavier.

    For me the Rune has become mostly a shuttle/FR/mini-DH bike, so I'm not really concerned about weight or it becoming too slack. It was the lightest/steepest bike on several rides this last summer, and we have a new bike park coming on line for next season. I already have the k9 cups, so with the marzocchi my head angle should be around 65 degrees. It feels really good, based on quick neighborhood test. I'll add BB height tonight.

    I can say... it's night and day plusher than the 36 float I removed!
    38mm stanchions, open oil bath coil sprung love...

  14. #14
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    That's a CRAZY price for that!

  15. #15
    FM
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    Quote Originally Posted by sandersbigbike View Post
    That's a CRAZY price for that!
    extra $20 off with discount code
    70R-1-SCBQN
    expires dec 12th, 2011

    I didn't catch that one in time

  16. #16
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    I have nearly 3000 miles on my Rune. Started riding it July '09. This summer I just noticed the little bit of slop in the seat stay bushing. I changed the bushing and it didn't help. Not too concerned about it at this point. The bushing I took out still looked alright. Just replaced the Manitou Evolver with a Fox DHX 5.0.

  17. #17
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    two runes and a gap.

    sent

    and, to keep it relevant, both are using this rocker.

    I have three more sets for individuals to try before the final design amendment.

  18. #18
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    Quote Originally Posted by mollystocks View Post
    I have nearly 3000 miles on my Rune. Started riding it July '09. This summer I just noticed the little bit of slop in the seat stay bushing. I changed the bushing and it didn't help. Not too concerned about it at this point. The bushing I took out still looked alright. Just replaced the Manitou Evolver with a Fox DHX 5.0.
    Don't you only run like 10% sag tho?

  19. #19
    FM
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    Nice shot sandersbigbike

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