We have been running a Gates 49C4266 Carbon belt on the 2015 Ski-Doo 174 and 163 for the last week. Switching it out between sleds, big improvement here as well. You don't see the black clutches associated with the Doo belt. It hooks hard.
Here is a picture of the primary clutch with a stock ....391 belt and I will add a picture of a clutch after running the Carbon belt.
The boys are dumping their Doo belts and buying the Gates Carbon.
Attached Thumbnails
Here is a picture of the primary clutch with a stock ....391 belt and I will add a picture of a clutch after running the Carbon belt.
The boys are dumping their Doo belts and buying the Gates Carbon.
Attached Thumbnails