Opus Bikes Size Chart Opus has stepped up their game and shed pounds for the all-new Lightweight Classico Women's edition. Now your ride is even smoother and seemingly effortless. With its extra-light alloy components, low step-through geometry and fresh look, this bike is a charming city companion. Features: - Extra light butted 6061 aluminum frame and fork - Premium urban saddle, handlebar and grips - 9-speed Shimano Alivio drivetrain - Frame: Meta 20 6061 aluminum - Fork: Opus Urban Alloy - Shifters: Shimano Alivio 9 - Front derailleur: N/A - Rear derailleur: Shimano Alivio - Brakes: Promax dual-pivot calipers - Brake levers: Promax Alloy - Crank: Prowheel ounce single ring - Chainrings: 39 - Bottom bracket: Ch-46-E cartridge - Cassette: Shimano HG400 11-34 - Chain: KMC Z99 - Headset: CH Semi-integrated sealed - Handlebar: FSA Metropolis 31.8 - Stem: Opus Bronze - Grips/Tape: Velo cork microfiber - Saddle: Opus Urbanista - Seatpost: Opus Gold carbon 27.2 X 300 - Wheels/Rims: Alex CX24 - Hubs: Joytech - Tires: Vittoria Zaffiro Pro 700 X 30 - Pedals: Wellgo Flat - Weight: 20 lbs - Lightweight fenders