I’ve got some issues with my DIY Raptor 1 with 9 mm HTD-5M belts. Everything was working fine until the first belt snapped after roughly 800 km. The new replacement belt hold up for a while but eventually broke. With the two last belts I did always hear a rubbing noise when braking which is really annoying. I am 100% sure that the wheel pulley did not touch the motor mount nor was anything stuck between the pulley teeth. I am going through a lot of belts lately and it drives me crazy not finding the root of cause of the rubbing noise (just on one side).
Pulleys look fine, and I don’t think one of the pulley bearings is gone? Any advice or experiences with the Raptor v1 drive train is highly appreciated!