2112b215 Trinx TEMPO1.0 700C Road Bike Shimano 21 Speed Racing Bicycle 53cm 56cm Shifter Lever: Shimano SL-A050 Front Derailleur: Shimano FD-TZ500 Rear Derailleur: Shimano RD-TZ500 Cassette: Shimano TZ21 14-28T Chain: KMC C50 Chainwheel: Trinx 28/38/48T*170L Brake: Winzip Alloy Hub: Trinx Sealed Bearing Rim: Trinx Alloy Double Wall Tire: Cst 700C*25C Colorful Net Weight: 25lbs Pedal: Feimin Sport Saddle: Trinx Road Handlebar: Trinx 430mm Hi-Ten Steel Road