Special frame shape Fork: Steel Fork Tires: 20*1.95 tire Rim: double wall Hub: KT Alloy Joy hub Crankset: Prowheel 40T Brake: Power Alloy V-brake R/Derailleur: Shimano TOURNEY Shifter: Shimano RS35 6Speed Freewheel: Shimano TOURNEY 14-28T Color Options: BLACK-BLUE / BLACK-RED / BLACK-GRAY / BLACK-PINK