Bigger Rear Tire What Sprocket?

[highside74]

I tried doing a search but couldn't come up with what I was looking for.

If I go from a 16 rear on a 50 to an 18 rear what should I do with the sprocket to retain power and torque. Go up or down in front or rear or both sprockets? Just started learning,Thanks.

[fomospede]

19-35
roller weight depend from machine to machine
put them in and run it you want thebelt to come within a 1/8 of the top of the front variator
heavier will make the belt travel farther out the sheave

[gistmarrs]

Go bigger. Similar ratio as the tire increase. The larger tires might rob some power, so you might need to go slightly less of a ratio.

If you go from a 16" tire with a 32 tooth sprocket, you would be close with a 18" tire and a 35 or 36 tooth.

[highside74]

I counted the teeth today. They are 16 tooth front and 28 tooth rear. So what does every one think on how big to go now? still 19-35 or leave the front and go to a 30+ tooth rear?