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coop45
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  1. Member Submitted Reviews
    for the rider that wants the lowest of low end grunt this is for you. With this mod in low i could hit 43 mph in high was close to 70 but took a long time to get there. with this i had a 1mm shim installed as recommended by coop MY opinion when first installed i was not inpressed but i...
  2. Official Clutch Forum
    In your opinion who machines the better clutch, Ive heard of better gains with ///airdam but possibly not as consistent? madmike took over coops clutch's but are they the same as they used to be, and are they as good as airdams? And which would you prefer to machine your clutch?
  3. Official Clutch Forum
    I'm looking to talk to any Grizzly owners who actually have the Coop45 mod installed on their bike. I have a couple of questions about comparitive performance between stock 7 Coop45; AND if anyone had any other clutch mods (machined sheave, rollers, ect.) and went from that set-up to the coop45...
  4. Official Clutch Forum
    I sent my Primary clutch sheave and my fixed plate off to coop45 for him to work his magic. He received them on Tuesday machined them on Wensday and shipped them out the same day and I got them on Saturday. Thats is the fastest turn around time I have ever seen from any machine shop I have ever...
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