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2018 Dropped and rolled chain case

Discussion in 'SideWinder Mountain Talk' started by murdered141, Mar 11, 2019.


  1. murdered141

    murdered141 Snow Punisher Lifetime VIP Member VIP Member

    Messages:
    1,304
    Location:
    U.P Michigan
    Country:
    USA
    Snowmobile:
    Yamaha sr viper 15 ltx dx, mpi 190 turbo, straight line header, 38" mtx front end, mtx steering, mtx seat, xtx 141" skid and 2.25" power claw track
    I'm looking at buying a leftover 18 mtx 153 se, first of all I need to know what gearing is in it, 2nd is the chain case just rotated and lowered or is it actually longer and uses a longer chain.
     
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  3. Mtnviper

    Mtnviper Vendor Vendor VIP Member

    Messages:
    1,392
    Location:
    Burlington Wa.
    It moves the drive axle down and back approx 1 1/4" The chain case is physically longer and uses a longer chain as well. Not sure on the gearing.
    The D+R makes a noticeable improvement in deep snow due to the better approach angle. Also it allows the use of 8 tooth drivers instead of 7 tooth found on the non-drop and rolled chain case, which improves drive train efficiency as well.
     
  4. minks_698

    minks_698 Pro

    Messages:
    125
    Location:
    Wisconsin Rapids
    Country:
    USA
    Snowmobile:
    2016 Viper MTX 141
    The gearing stock is probably 21-49.
     

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