Crankbrothers Synthesis E I9 Alloy Rear Wheel 27.5 12 x 148mm 6 Bolt XD BLK Chain Connection Type Reusable Master Link Moreover the adjustments become easier Moreover the adjustments become easier thanks to a glossy black line applied to the lower part of the body that indicates the position of the BRP (Biomechanical Reference Point) the point where the saddle reaches the width of 70 mm and from which to measure the parameters useful for the right positioning Color Black Weight 194 Chainguide Mount Type ISCG 05 Max Tooth (teeth) 36 Rear Axle 12mm Thru x 148mm Rim Width (Internal) 29 Stiff tuned rear wheel supports peak loads and enhances stability and tracking at speed