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speed

  1. D

    Top speed 72

    Looking for insight: I have a 2006 RS Vector been out on a few rides this season all is good. However my top speed is 72 mph. The acceleration is crazy fast, I can get to top speed like crazy but it’s just not going faster. The best I can tell I’m reaching top speed around 8k rpm. No other...
  2. 2ooosrx

    SR Viper Turbo Speed Kits

    We have developed an all in one speed upgrade for your MPI 190 turbo SR Vipers. This kit includes a new lower gear, hyvo chain, machined helix with overdrive acceptance, secondary spring (set at 3-3), and secondary washers. We have seen drastic improvements over stock gearing/clutching as this...


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