woodsrider
TY 4 Stroke Junkie
- Joined
- Feb 17, 2005
- Messages
- 669
- Reaction score
- 11
- Points
- 893
- Location
- Lewiston, ID
- Country
- USA
- Snowmobile
- 2017 YZ450FX1 Moto-Trax 137 Mountain Kit
a good rule of thumb (if the drivers and rear wheels are the same diameter) is half the difference between the two overall track lengths. (153-121)/2