Shimano SLX FC-M7120-1 1x12 Speed Crank Arms - 24mm - Shimano Direct Mount - No Spider - No Chainring - 55mm Chainline - Black - 170mm - 68-73mm YGroup_7421782884397 then these are the ones

then these are the ones you'll need

Shift with precision and ease with the X-Actuation indexing that keeps shifting sharp and consistent across the entire cassette

or other trail users when things get a bit ugly out there

Runtime: High 1hr 10 min

Installation is fairly easy

Shimano SLX FC-M7120-1 1x12 Speed Crank Arms - 24mm - Shimano Direct Mount - No Spider - No Chainring - 55mm Chainline - Black - 170mm - 68-73mm YGroup_7421782884397 then these are the onesThe Shimano SLX M7120 Cranks feature an entirely new construction utilising Shimano's Direct Mount chainring system. With Hollowtech II technology Shimano are able to keep the weight down, while still creating a rigid crank arm capable of handling pretty much anything you can throw at them. Who's this item for: Designed for Trail and Enduro, but they are great for almost any type of riding. Spindle Size: They Feature a 24mm spindle. Weight: