Sprocket sizes

[Carlos Murphy]

What are the factory sizes for sprockets on a 1981 Honda 125R ?

Need more low end torque, first gear RPM is too low for climbing hills, have to haul ass when I come to one.

Do I just change the wheel sprocket to a larger size and where can I find a ratio chart?

Thanx, Carlos

 

[rpm12505]

You won't get low-end torque out of a 125 but if your gearing is that far off try changing the front sprocket 1 tooth smaller. It's the cheapest one to buy. good luck pjm

 

[jason33]

well parts unlimited is the only one listed? huh any way it says
13 front 51 on rear
you can get a 11 tooth one for it it will help out a lot!-10.95