The 2021 GT Air BMX Bike is an entry level model designed to teach and improve the freestyle technique of new riders. To do this GT equipped the Air with components such as 3-piece chromoly cranks featuring a modern 25 x 9 gearing, a cassette rear hub, and the popular 20 x 2.3" and 20 x 2.2" tire sizes for front and rear respectively. For a first bike, the GT Air soars.
Frame: GT Freestyle Design, High-Tensile Steel Tubes, Downtube Gusset
Fork: GT Freestyle Design, High-Tensile 2-Piece Steerer and Tapered Legs (31mm Offset)
Headset: External Threadless (1-1/8")
Stem: GT Top Load, Cold-Forged Cap (40mm Reach) (32mm Rise)
Bars: GT Freestyle 2-Piece Steel (8.375" Rise) (28" Wide) (3° Up) (11° Back)
Grips: GT Super Soft Single Compound (155mm)
Bar Ends: GT Removable Plugs
Cranks: GT Power Series Chromoly 3-Piece, Chromoly 8 Spline Spindle (170mm)
Bottom Bracket: American Loose Ball (19mm)
Pedals: GT Low Profile FS Platform, PP Material, Boron Axle
Chain: KMC Z410
Sprocket: GT Steel (25 Tooth)
Front Hub: Steel Body, Loose Ball Bearings (3/8" Heat Treated Axle)
Rear Hub: Steel Body, Loose Ball, Cassette (14mm Axle)
Driver: 9 Tooth
Front Rim: Alloy (Single Wall) (36 Hole)
Rear Rim: Alloy (Single Wall) (36 Hole)
Front Tire: Innova (20 x 2.3")
Rear Tire: Innova (20 x 2.2")
Seat Post: Steel (25.4mm)
Seat Clamp: TBD
Brakes: Aluminum U-Brake w/ Soft Compound Pad
Brake Mounts: Welded
Gyro Tabs: Drilled
Color: GT Yellow
Headtube Angle: 75°
Seattube Angle: 71°
Stand Over Height: TBD
Bottom Bracket Height: 11.8"
Sizing Guideline: 4'10" to 5'3" Tall
Need help building your complete bike? Check out our bike build video below.
NOTE: To ensure that every component on your bicycle is working properly, Dan's Comp recommends that all bikes be assembled by a qualified mechanic. Improper assembly of your bicycle may lead to premature wear or failure of individual components such as headsets, crank assembly and wheels. Failure to do so may void the manufacturer warranty.