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jackshaft

  1. JimmyNibbles77

    HELP! Jackshaft Kit Front Gears Rub Frame

    Hello, community! I've got a GT Agressor pro mountain bike build coming to the FINAL stages of its build, however, I have run into an issue. The front two gears that came with my jackshaft kit rub against the rear frame of my bike before being fully mounted to the spindle. This makes it...
  2. JimmyNibbles77

    Affordable Jackshaft

    Hello everyone! I'm quite new to motorized bikes and with my first engine in the mail and differing terrain in my area, I wanted to explore the possibility of shifting gears. Thus, I stumbled across jackshafts and all my dreams came true... Until I saw the price... A jackshaft kit would cost...
  3. Fast Shag

    Full suspension Specialized Jackshaft

  4. My Build

    My Build

    My last build... starting a new 1
  5. GT80 Racing kit with jackshaft

    GT80 Racing kit with jackshaft

    GT80 Racing kit with jackshaft
  6. G

    Jackshaft Strange Chain Issue

    I was wondering if anyone has ever had this very strange problem with their shift kit that I just can't figure out for the life of me. So my problem is adjusting the two mount plates on either side of the engine that hold the shaft itself with the bearings. First, to clarify, I have a 10 tooth...
  7. lukecanna

    What engine should I get!?!?

    Hi everyone, This is a sort of repost of an old post but i am wanting to do a fat bike build with power for going through sand and carrying two average weight riders. I was confused if i should get a jackshaft kit from SBP so i can keep the rear disc break. but because of budget this means i...
  8. dmopedMA

    automatic 2 gear jackshaft

    UPDATE (May 5): I decided to update this first post pointing to the, I believe, milestones of this project: First schema: https://motoredbikes.com/threads/automatic-2-gear-jackshaft.53164/post-467128 Custom made long shaft...
  9. Otto Neumann

    2 Stroke Jackshaft troubleshooting

    Hi people, I'm beginning to think on a possible 2 stroke bicycle, equipped with a shifting kit from SickBikeParts.com. For the moment, the bike that matches with my needs, it's equipped with a frontal derailleur and a double sprocket crank assembly; for reference, the pedal assembly it's like...
  10. Fito Modena GT-2: Needs choke lever chopped and the frame mounted cable guide chopped

    Fito Modena GT-2: Needs choke lever chopped and the frame mounted cable guide chopped

  11. Fito Modena GT-2: Needs >225mm spindle and offset cranks to clear the 4G case

    Fito Modena GT-2: Needs >225mm spindle and offset cranks to clear the 4G case

    fito, modena, jackshaft, hs142f
  12. Fito Modena GT-2: passenger's side

    Fito Modena GT-2: passenger's side

  13. Fito Modena GT-2: front side

    Fito Modena GT-2: front side

  14. Fito Modena GT-2: driver's side

    Fito Modena GT-2: driver's side

  15. V

    For Sale - Custom Motorized Bike

    This is a fully custom Motorized bicycle. It has a pitbike engine with custom jack shaft assembly to pedal while engine is in neutral. Has full brake lights, turn signals, head light, and running lights in rear. Also has battery ..full custom exhaust, gas tank, everything really is custom on...
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