Produces no noise and requires no maintenance, unlike friction systems. Smart Release provides on-demand coasting. Saves wear-and-tear on knees when reducing pedal rpm compared to fixed-gear-only bikes. Zinc-plated steel frame. Weight capacity 300 lb. Assembly required. 43"L x 20"W x 48"H; 126 lb. Optional LCD MPower™ Console displays telemetry heart rate, calories, rpm, and total time; requires 2 C batteries (not included). Truck delivery.