Demolition x Markit collab sprocket. Solid 6.7 mm thick, stronger 7075 aluminum with the Markit M CNC’d on the front face and Axes on the back. Four mounting holes are compatible with most removable nylon guards (Not Included). Center aligned teeth allow you to run the sprocket with either side facing out. Complete with two spindle hole adapters (19 and 22 mm). Fits 24mm cranks without any spacer.