Do you have to change gearing if you go 121-144

[prozac500]

Rule of Thumb:

The more track you're trying to pull the lower tooth gear you should use. This will create more torque to pull your track at the bottom end like it should (you will sacrifice top end speed). If you are running stock GT gearing get rid of it and atleast drop to the stock FX/RTX 18 tooth top gear. This will be a good start and work through your clutching for the rest. If you're still not satisfied change the top gear again.

I just heard that the GT and the FX are the same size sprockets.
I haven't took any thing apart yet so I want to know how many teeth are on the GT sprocket because I keep on getting different answers.

 

[cannondale27]

Here you go:

 

[cannondale27]

GT is geared for top end,FX and standard lowend and Mountain even lower.

 

[Prav]

If it were me I'd start with the 18 and see how it performed. This will allow room to change up or down based on your style of riding. If you only want to do it once.... put in a 17 like the Mountain and be done.

 

[prozac500]

THANKS
Guys