lifan

  1. TheNecromancer13

    Necro's 4 speed 125cc Lifan Build Thread

    So I decided to go ahead with the 125cc lifan build. Engine and a few other parts arrived today, holy crap the engine is massive! Micargi puma arrives tomorrow. Then I can start figuring out how to mount the engine. Going to gear it for a top speed of just over 60 mph at 9500 rpm in 4th gear...
  2. TheNecromancer13

    Gear reduction for 125cc lifan?

    So I am building a 125cc lifan bike, and I am trying to figure out what a good gear reduction would be. The engine itself has internal gear reduction, 4 speed. 1st gear is 2.833:1, 4th gear is 0.958:1. I was thinking about 12.5:1 gear reduction after that, which if my calculations are correct...
  3. TheNecromancer13

    Might try to build a 125cc Lifan bike

    So I currently have a single speed 79cc predator bike that can do about 40 on level ground, but I would like a bigger, higher quality engine. I was thinking the 125cc lifan would be cool to build a bike out of because of the built in 4 speed transmission. Only thing is that the engine is about...
  4. K

    Motorized bicycle Lifan 125 Gear Ratio ?Chain?

    Hey guys i have a 212 predator engine without the governor.... and gear ratio goes like 9-22-11-56 using the #410 or #415 i believe but since it is rated for 3600 rpm i don't rev more than 4300 rpm which gives me 26 mph i want to upgrade it with the lifan 125cc 4 spd manual engine but i am...
  5. D

    LIFAN 2.5 HP Engine on bicycle

    I previously owned a 4 stroke bicycle engine kit, and now I have been riding around my 2 stroke engine! It's a lot of fun, but I'm looking for the smooth ride I once had before my other engine's clutch crapped out and I ruined the engine. I noticed that homedepot is selling this 97cc engine...
  6. LabRat

    Micargi Puma with twin 97cc flat top lifan's

    Never gave much thought to building a stretch. However, there was an add on CL - a Puma listed really low. I did give it somethought - 60 seconds, the kind seller even drove 60 some odd miles to make delivery. I parked her hanging upside down in the shop and dismissed my purchase, having much...
  7. BarelyAWake

    The Bent Zombie Tribrid Tadpole Trike

    K... first off as ya'll may or may not know, I'm not known for buildin' bikes in a hurry lol, I like ta take my time, usually whiling away the winter tinkerin' and somtimes wondern' what in heck I've gotten myself into. This 'uns no different, well... mebbe a lil heh Usually I don't like to...