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Thread: Help with ground clearance -- Chain tensioner

  1. #1
    Join Date
    Feb 2004
    Location
    Benton City, WA
    Posts
    26

    Help with ground clearance -- Chain tensioner

    Hi,
    I am new to the mini-scene but purchased an Apex 90 Pro MX back in April. My son is 7 and is just getting started with racing.

    My question is, is it possible to remove the skid plate and chain tensioner? The track he is racing on is nothing but sand, and after a few motos of bikes/quads, gets some DEEP ruts. He sometimes gets sucked into them and gets high centered, which causes sand to get packed into the skid plate and causes the chain to come off. He would gain an extra 1 1/2 inches of clearance by removing the skid plate.

    So far, I'm very happy with the machine, I just need to gain some ground clearance so he doesn't get stuck.

    Thanks for your help!

  2. #2
    Join Date
    May 2005
    Location
    Poestenkill, NY
    Posts
    456
    Quick get out while you still can!!



    No, mini-quad racing is the best!

    You can get rid of the skid platees, but don't get rid of the chain tensioner.

    You are already on the right track by coming on this site, more help and info than you can imagine!
    #17 2013 NEATV Prod C, 4strk C, Open C

    thank you to:
    DRT Motorsports, Team Southside Polaris, Rath Racing, MSR, Nac's racing, Gaerne Boots, Lou Russo Photography, Crystyle Concepts, 537 Productions, Juniors Jerky, ASAP Plumbing, Griffin Motorsports, Adirondack Designs,

  3. #3
    Join Date
    Feb 2004
    Location
    Benton City, WA
    Posts
    26
    Thanks for the info. I can definitely see where this is going to get expensive!!

    Is there a way to remove the chain guard/skid plate without removing the tensioner? My quick heat-of-the-moment try had the tensioner attached to the skid plate. Is there a way to attach it directly to the swingarm?

  4. #4
    Join Date
    Feb 2006
    Location
    Indiana
    Posts
    586
    You can purchase an aftermarket tensioner from JL ATV that will bolt directly to the swingarm. If you had to you could weld a tab to mount it to. But more than likely you will find a place to mount it.

    Shane
    WWW.FINISHLAST.ORG

  5. #5
    Join Date
    Nov 2007
    Location
    not near you
    Posts
    637
    seems like the chains are too long from the get go ..anyone ever try running these type quad with out them ?
    seems as tho you can cut the chain to required length to eliminate chain tensioner ??????????
    is there a reason why these mini quads have "chain tensioners"?
    what does it really do ?... could the quad be ran with a proper length chain
    or are these stupid things needed because the carriers only have a lil adjustment ?

  6. #6
    Join Date
    Aug 2007
    Location
    North Georgia
    Posts
    157
    The up and down motion of the swingarm causes the chain tension to increase and decrease. The purpose on the tensioner is to maintain proper tension throughtout the swingarm motion range. When you adjust your chain tension, you should compress your rear end and adjust your chain at the tightest point, theoretically.
    FlyBy Racing

  7. #7
    Join Date
    Sep 2007
    Location
    Lakeland
    Posts
    107
    The chain geometry on the Apex is pretty good. There isn't a whole bunch of slack at ride height or in full compression, but like everyone says, a chain tensioner is needed.
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