Lightly used 2011 TREK MAMBA WSD 29er mountain bike in good condition. kept indoors when not in use. This is a great trail and cross-country hardtail bike with good handling and stability thru rough terrain. has seat off but comes with two seats and all bolts to put back on Specifications: Frameset Frame: 6061 T6 aluminum, butted & hydroformed tubing, cold-forged dropouts & bottom bracket, G2 29" Geometry Size: Women's 17.5 Wheels Wheels: Formula DC20 front hub, Shimano M475 rear hub; Bontrager Ranger Disc 32-hole rims Tires: Bontrager Front = 29 x 2.5", Rear = 29 x 2.0" Drive Train Shifters : SRAM X.4, 8 speed Front derailleur: Shimano Deore Rear derailleur: SRAM X.5 Crank: Shimano Acera, 44/32/22 Cassette: SRAM PG-830 11-32, 8 speed Pedals: Shimano clipless pedals Components Saddle: Bontrager Evoke 1 WSD Seatpost: Bontrager SSR, 27.2mm, 20mm offset Handlebar: Bontrager Approved Big Sweep, 15 degree sweep Stem: Bontrager SSR Headset: 1-1/8" threadless, semi-integrated, semi-cartridge bearings Brakeset: SRAM BB5 mechanical disc brakes, 6-bolt; 160mm rotors