Get fit and healthy outdoors with Reebok Bikes. Mountain, City Trekking, Junior, Racing or our unique line for Women. There?s a Reebok bike to suit everyone. Key Features: Brakes: C.Star Alloy Levers Alloy Brakes. Forks: Reebok 992 Front Suspension. Frame: Material 6061 Alloy. Gears: 21 speed gears Sram MRX shifters Falcon Freewheel Shimano TX31 Rear Derailleur GS Steel Cranks. Wheels: 36 Spoke Alloy Rims Steel QR Front Hub 1.95 Tires.