SHIMANO M361 Hybrid Crankset (Black) Review Posted by GiantPandaisy May 29, 2018 in Drivetrain Components 175mm crank arm length Comes with 3 chainrings – 48/38/28 Comes with a chainguard Square bottom bracket compatible Shimano Acera cranksets feature replaceable chainring and shifting guides for better performance. Cycling Outdoor Recreation Parts & Components SHIMANO Sports & Outdoors