2112b214 Trinx Free 1.0 700 °C 21 Speed Shimano Cross Bicycle Bike Racing Road Hybrid Aluminium Frame: 47 cm Aluminium derailleur: Shimano ST/EF500; Shimano Ultegra TY510; Shimano RD TY300/FW: Shimano TZ21 14 – 28T fork: Hi-Tensile Steel Chain: Hi-Tensile Steel Brake: Winzip V-Brake rims: Trinx alloy double wall Tyres: CST 700 °C * 28 °C 27TPI chain wheel: 28/38/48T * 170L Hub: Joy Tech alloy pedals: Natty Flat Saddle: Trinx Sport sports steering wheel: Trinx alloy Colour: White