1.Big size passenger seat,comfortable 2.21 speed ,shimano kits ,Auriga twin brakes ... twin brakes and Kenda tyre, inner tube .... Wheel size :Front 20" x2.125 Rear 24" x 2.125Shifter & Derailleur:Shimano ,8 ... Ester products series , please do not copy ! Shimano 21 speed Passenger Pedicab