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  1. S

    Sprocket problem. Help!

    Rpm 3000, 11t on motor sprocket and total diameter with tire is 21 3/8 inch. Pretty large tire.
  2. S

    Sprocket problem. Help!

    I think I will change the hub for one like this https://www.amazon.ca/dp/B07C779RTQ/ref=cm_sw_r_cp_apa_i_PIPADb0VCZ5SN And use this to mount it on. https://s.click.aliexpress.com/e/NQxLBRY8 https://s.click.aliexpress.com/e/MMLU07lQ https://s.click.aliexpress.com/e/5FV3otpO What do you...
  3. S

    Sprocket problem. Help!

    Human power should be usefull if I run on low battery but I dont know how to put both.
  4. S

    Sprocket problem. Help!

    I dont want to put a gaz motor :p but an electric 48v 20a 1000w motor with lithium battery but I can take my chance to another forum too. I am better in electric than mecanic.. Your disc brake adaptor idea is great but I need to mount it to a freewheel? How? Thank you!
  5. S

    Sprocket problem. Help!

    Can I use this? https://s.click.aliexpress.com/e/czalYIjA On this? https://s.click.aliexpress.com/e/sd2puznE
  6. S

    Sprocket problem. Help!

    Yes this is exactly the bike I got. I dont know if I will take the pedal out.. I think yes. The method with the disc brake adapter seems nice but I wonder if there is a bearing attach to the sprocket? When the engine goes ahead its fine but if the engine does not turn and the wheel yes...
  7. S

    Sprocket problem. Help!

    I try to put a picture of the bike but I dont know how. If you type "jesse james bicycle" on google you will see the small chopper bike I am talking about.... I buy the "for the evil genius" book but it dont talk about "change a sprocket for a bigger one" lol
  8. S

    Sprocket problem. Help!

    Hello everyone, I hope one of you can help me. I try to make an ebike but I dont know how to install the rear sprocket. I want to put a # 25h 74t or 80t ... I need to use an adapter? which one? Thank you really much for your help.
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