Brian Crower Can-AM X3/Rotax 900 ACE Adjustable Cam Gears - Intake & ExhaustBrian Crower Can AM X3 Rotax 900 ACE Adjustable Cam Gears Intake & Exhaust Machined from hardened steel alloy and fully compatible with the stock X3 timing chain (BC has new Cloyes timing chains also), the BC adjustable cam gears for the Can Am X3 platform are the perfect way to gain top end or low end torque depending on how you dial in the gear settings. Separate intake and exhaust gears to avoid confusion, the adjustable center sections are CNC