Want to mount a motor on mountain bike

[Hamop]

i have been looking at the kits,measuring my bike for a ring belt drive but still looking at 4 stroke ,two stroke,motor sizes can't make the decision no which one would work best,can anyone give me some help.I weight 228, want to trail ride maybe on the road a little! have a china mountain bike had to stop riding my old knees started giving me trouble, i rode almost everyday for a long time! any help on this would be appreciated.From East Texas! Thanks

 

[Dave31]

Welcome Hamop to the forum, glad you joined

2-stroke...the 70cc has got little more torque then the 48cc I think if you used a 50t sprocket you will be okay

4-stroke dont know to much about them...
here is a link to measure for the belt drive
http://motorbicycling.com/showthread.php?t=510
post #15

 

[Dave31]

I forgot to mention..for the 4-stroke check out Thats Dax titan chain drive...I've heard nothing but good thing's about it

bicycle engine kit, bike engine, bicycle engine, bicycle motor

 

[Hamop]

Thanks looked at it,question how does the sprocket mount on the wheel? can't see how it does looking at the pics!

 

[Dave31]

It mounts the same way as a two stroke does. Although Cruiser has got a cool set-up where the sproket mount's to the hub

Page Title
http://motorbicycling.com/showthread.php?t=1567
Click on cruiser pic to see full size

 

[jasonh]

If you have rear disc brake, King's sales and service (see ad on top left of page) can do sprockets to mount to the disc hub. You'd have to find a new rear brake though.