LTR450 with a 11T or 12T sprocket

[THORrider350]

anyone ever have one of these sprockets on there bike? like to get a little bit of info, thinking about gearing it down some more. i have a 13T on it now. need more bottom end for hills.

[Canadian144]

What size rear tires are you running with the 13T?

[THORrider350]

20 in RAZR's on 9 in rim

[panici33]

Ever think about changing the rear sprocket...an 11t or 12t to me would be too small for the chain to run around correctly. You will see a lot of your hillclimbers have really big sprockets on the rear. It may cost more, but I think this would be your better option. There was a post just made recently that gave a comparison between the drive sprocket and rear sprocket...check that out.

[Canadian144]

^ +1 on what he said.

[THORrider350]

well then what are you thinking i should do with my geairng.. i really dont care if i have zero top end at all truely.. All we do is ride from one hill climb to the next.

this is my setup i have now... 22x7-10 fronts, 20x10-9 rears, full moto works pipe, cherry bomb, wiesco piston, hot cams, 13 T front sprocket. i think thats about it.. how much should i go up on the rear, its stock size for an 06.

like i said before i never drag race or do any kind of mx.. we ride hard from hill to hill and thats about it.

Any help would be greatly appreciated. i am gonna try and trade it off for something else if i cant get this corrected soon.

[panici33]

It's a little more difficult to get bottom end out of the ltr without doin engine work (port, stroke, bore, etc) but i changed my rear sprocket to a 38, because i think stock is 36, and I saw a considerable difference. You could go even higher than that 41, 42...