Opus Bikes Size Chart One glance at at the Moly tells you it's got it all. Faithful to the tradition of French touring bikes, the Moly's 650b or 700c wheels (7D Pearl White large size only) and upright position yield unparalleled comfort and control. The perfectly proportioned wheels and easy step-through height, combined with spring saddle and custom grips, make the Moly an instant classic. Features: - Urbanista steel frame design - Reliable 7-speed or single speed drivetrain - Equipped with fenders, full chainguard and rack mounts - Frame: Meta 10 steel - Fork: Opus Urban CRMO - Shifters: Shimano Tourney 7 - Front derailleur: N/A - Rear derailleur: Shimano Tourney 800 - Brakes: Promax dual-pivot calipers - Brake levers: Promax 3-finger alloy - Crank: CW Alloy single ring - Chainrings: 38 - Bottom bracket: Ch-46-E cartridge - Cassette: Shimano TZ-31 14-34 - Chain: KMC Z51 - Headset: Threadless - Handlebar: Opus Urban 80mm Rise - Stem: Opus Bronze - Grips/Tape: Velo synthetic leather - Saddle: Velo urban synthetic leather - Seatpost: Opus Bronze 26.8 X 300 - Wheels/Rims: Jogon 650B - Hubs: Joytech alloy - Tires: Kenda Koast 650B X 35 - Pedals: Wellgo Alloy Cage - Weight: 29.2 lbs