The M8120 cranks are compatible with Boost frames only

very reliable and very reasonably priced

Max occupant weight: The lightweight tow strap contains a military-grade bungee cord inside with a 680kg rated webbing

Removable D3O® elbow inserts for the perfect balance of comfort and protection

Carries your OneUp EDC toolkit and doubles as a hand pump

Shimano SM-CRM86 XT Chainring - Direct Mount - Shimano - 55mm - Round - 34T - 12-speed - Aluminium Replace Images The M8120 cranks are compatibleDirect mount and equipped with Dynamic Chain Engagement technology for best in class retention, the reinforced SM CR86 chainring is impact resistant, compatible with DEORE XT cranksets, and offered in sizes from 28T to 36T in two tooth increments. Features Dynamic Chain Engagement tried and true Dynamic Chain Engagement keeps the chain glued to the ring Ring sizes available in 28T through 36T for compatibility with all DEORE XT drivetrain and rider