Totally new to this

Discussion in 'Motorized Mountain Bikes and Road Bikes' started by Tbird5, Aug 8, 2019.

  1. Tbird5

    Tbird5 New Member

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    Hi friends, so , ive messed around getting some old mopeds up and running, and this seems like a fun project to take on. My questions are probably basic, but ill ask anyway. Do you guys think an old trek 850 26" is a good candidate for this. The bikes gears dont work, so will the gears be needed to complete the conversion. Thanks in advance.
     
  2. wheelbender6

    wheelbender6 Well-Known Member

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    Welcome. Steel Trek 850 is a good choice. You can ride a geared bike like a single speed. Place the chain on the rear cog that you like and the adjust the limit screws on the derrailer to keep the chain on that one gear.
     
  3. Tbird5

    Tbird5 New Member

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    Th
    Than for the info
    Thanks for the help!
     
  4. Lorenzo Guevara

    Lorenzo Guevara New Member

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    That's what I did,when the derailed spring broke.
     
  5. wheelbender6

    wheelbender6 Well-Known Member

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    Time for a new derraleur.
     
  6. bairdco

    bairdco a guy who makes cool bikes

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    You can remove the derailleur and put the chain on whatever gear that lines up with the front chainring, or remove the gear cluster and get a single freewheel.
     
    indian22 likes this.
  7. Rusty_Nail

    Rusty_Nail Member

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    I'm installing an 80cc kit on a a Trek 830 mountain bike and so far the engine fits good.
     
  8. BrandFord2140

    BrandFord2140 New Member

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    I have had my 48cc so far running about 2 to 3 months and I can say it's been very fun time I've completely built a bicycle from a single speed to a 21 speed full custom shifting on the gears on the bicycle side complete custom spring chain tensioner on the engine side and I've just been having fun with it so far I believe I'm running a 40 to 1 oil to fuel mixture and it's been running good found out in the last few that the 2-stroke oil fuel mix dies my bike now has a rough idle and very low power
     

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