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  1. J

    Rupp Original Clutches or Other?

    JACKShaft setup JRZMAC- I know its a old thread. How would I go about setting up jackshaft like the orange bike in the 4th picture. Would I need the Rupp jackshaft bearings? Then a 5/8" threaded jackshaft. I kind of assuming like a custom length. Don't know if it need to be have a keyway...
  2. J

    Rupp fork help

    Which Rupp fork has better dampening. The ones with the external spring type, or the regular internal springs. My forks are rusted tight, and contemplating switching to the external springer type. Just want to know which one rides better for off-road.
  3. J

    Rupp Rust Bucket Rat

    Any luck with the forks yet? Mine are locked to. I filled mine with vinegar which dissolves rust also. I got to try soaking them again. First time I tried loosening them I got a big pipe wrench on the forks and they still wouldn't budge. I know some people melt the plastic bushing out.
  4. J

    Rupp motocross alternative.

    OldMiniBikes is selling them in the vintage reproduction section for rupp or do a google search 3x12.0 tires and there are a few others out there
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