rear wheel chain rubbing
  • SuperHoon
    Posts: 6
    Joined: Mon Jul 16, 2012 5:10 am

    rear wheel chain rubbing

    by SuperHoon » Tue Jul 17, 2012 12:48 am

    hi all,

    im running a 08 450r with 5 inch rear rim, have been getting alot of chain slap on the rim. i run a 170/55 dunlop race tyre and i've got a fair bit of clearance to the chain. i could move the rim over more again but i have about 2mm clearance when running my wet rear tyre (pirelli rain sc1 160/60)

    has anyone worked out a good chain guide for the top of the swingarm to stop the chain flying round? has anyone done any sort of chain guide?

    maybe my chain is worn so it flops around more, its a did x ring of some description. vt2??

    i really want to stop the chain slap because i'm getting a set of marchesini's soon and don't want to wreck them.

    i'll take some pics and put them up.
  • staffy24
    Posts: 742
    Joined: Wed Dec 29, 2010 3:29 am

    by staffy24 » Tue Jul 17, 2012 2:12 am

    the 450 x here in aus is a road going machine and has a guard as standard that dose the trick
    over 40 still ridin hard
    still learning
  • SuperHoon
    Posts: 6
    Joined: Mon Jul 16, 2012 5:10 am

    by SuperHoon » Tue Jul 17, 2012 2:26 am

    is that the big white guards that they have to pass the ADRs?

    i might just buy a new chain to get rid of that issue, its done a fair bit of work.
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    crfsonly
    Owner
    Posts: 9637
    Joined: Thu Apr 01, 2004 3:45 pm

    by crfsonly » Wed Jul 18, 2012 11:28 am

    you can have the rear wheel dished to the right to reduce/eliminate chain slap.
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
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  • SuperHoon
    Posts: 6
    Joined: Mon Jul 16, 2012 5:10 am

    by SuperHoon » Fri Jul 20, 2012 6:34 pm

    my rear wheel is already pretty dished over to the right.

    heres how much clearance i have. on the right it looks like alot but its only 3mm. you'd know how the crf swingarm is sort of a c shape on the inside. makes it look like more clearance.

    Image

    Image

    Image

    [/url]
  • cmra310
    Posts: 8
    Joined: Fri May 18, 2012 6:02 pm

    by cmra310 » Thu Aug 23, 2012 11:01 am

    I made a chain guide for my supermoto....used a piece of aluminum angle and a piece of plastic cutting board(hard, white, slick plastic)...i would post some pics but doesn't look like i can post from my hard drive, url only and i dont have the pics online anywhere...

    put pics in my garage...i dont have any close ups of finished product, ill take a few and put them in the garage.
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    crfsonly
    Owner
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    Joined: Thu Apr 01, 2004 3:45 pm

    by crfsonly » Thu Aug 23, 2012 11:53 am

    welcome to CRF's Only. definitely look forward to seeing your work.

    ken
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
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  • cmra310
    Posts: 8
    Joined: Fri May 18, 2012 6:02 pm

    by cmra310 » Fri Aug 24, 2012 11:18 am

    http://www.crfsonly.com/forum/garage.ph ... ge_id=6006

    needs a little more work but it only took a few hours to do and I used scrap I had lying around 8)
  • User avatar
    MJ 88
    Posts: 7
    Joined: Sun Jun 08, 2014 8:54 am

    by MJ 88 » Sun Jun 08, 2014 6:08 pm

    This is what I came up with.
    Image
    Image
  • Cjoecruz003
    Posts: 14
    Joined: Thu Mar 13, 2014 1:02 pm

    by Cjoecruz003 » Tue Jun 10, 2014 10:05 am

    The PO of my bike had a 5" excel w the same KR108 170/55 dunlop. He had chain slap on the rim but after the damage was done added a roller on top of the swingarm.

    Not sure how to load a pic on here from my phone but the roller is the same as the lower roller underneath the swingarm. Drill and tap for a bolt to go through to hold the roller or weld a threaded insert on top of the swingarm to act as a long nut for the bolt and roller[/img]
  • Cjoecruz003
    Posts: 14
    Joined: Thu Mar 13, 2014 1:02 pm

    by Cjoecruz003 » Tue Jun 10, 2014 10:07 am

    Btw, where are you getting the 170s from? I've only found the 165, heard they don't make the 170s anymore??? :lol:

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