The Belt Anti Skip set (BAS) is designed for Modified racing purpose with "big horsepower" and/or high traction conditions.
It will support the rear belt with an additional ballbearing and prevents 100% from Belt skipping in every possible scenario.
Info:
This part/set fits only with AM177 Motormount.
contains:
1x AM111
1x B73SS
1x SB3x5
1x SB25x6