Mongoose Men's Switchback Sport Mountain Bike Mongoose aluminum mountain frame with SR Sun tour M3010 suspension fork with 63 mm travel and lockout Shimano 21 speed drivetrain with Shimano Tourney derailleurs and Shimano of 51 trigger shifters Promax alloy linear pull V brakes Alloy wheels with weinmann zac 19 double wall 36 hole rims, alloy q.R. Hubs, stainless steel spokes and innova 26 x 2.0 mountain tires Alloy triple 42/34/26 crankset with range cartridge bottom bracket