700c,21Speed Road Bicycle new Type

Frame:high carbon steel frame

Painting: painting with inner sticker

Handle bar: carbon steel handle bar

Brake: Disc brakes

Shifter&FD&RD:51-7&30&50

Bottom axis: 3S axis

Crank: steel crank

Seat: professional MTB seat

Pedal: Race bike special large pedals

Rim: alloy rim

Tyre:1.95cm width