This 2-piece crank uses an outboard, 24mm bottom bracket and features 2x11 speed 52-36, 50-34, and 46-36T compact chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames.
For reliable mountain bike shifting, the SL-M315 rapidfire shift lever is suited to quick shifting, giving riders the ability to downshift three gears in one stroke.
