Wolf Tooth Direct Mount Drop-Stop eBike Chainring - Direct Mount - Shimano - 55mm Chainline - Round - 32T - 9-12 Speed PDP|PLP|Rail Material On the surface

On the surface

Box One Prime 9 Cassette:

Oval Guide has unique adjustable chainline from 48-53mm making it compatible with every single bike setup

Sleeve Length: All the way

Cons: As with most Park Tool tools

Wolf Tooth Direct Mount Drop-Stop eBike Chainring - Direct Mount - Shimano - 55mm Chainline - Round - 32T - 9-12 Speed PDP|PLP|Rail Material On the surfaceWolf Tooth Direct Mount Chainrings for Shimano eBike Motors have a 55mm chainline and are compatible with all Boost and Super Boost bikes that use the Shimano EP8, E8000, and E7000 eBike motor splines. The Drop Stop B tooth profile is compatible with almost all 9 , 10 , 11 , and 12 speed chains the only exception is Shimano Hyperglide+. The Drop Stop ST tooth profile is only compatible with Shimano Hyperglide+ chains. Direct Mount Chainrings for