At home in the neighborhood or the skatepark, the GT Air BMX is the perfect first bike. The frame geometry is quick responsive allowing the bike to handle easier as the young rider builds up their strength. Spec'd with a 25t sprocket, a 9t cassette rear hub, and large volume tires, the Air lets the rider fit in with their friends without a high price tag.
Key Features:
- Hi-Ten steel tubes frame
- GT FS design, Hi-Ten steel fork
- GT Power Series Cr-Mo 3pc. 170mm crank arms
- Aluminum U-Brake with soft compound pads for sharp stopping power
- Sizes: 20w
- Colours: Yellow
- The GT Air is available with 0% APR Finance
All Tredz bikes are:
- Fully built & ready to ride
- Fully checked & tested by Cytech qualified mechanics
- Available with 0% APR finance on any basket over £99
- UK price match guarantee
- 365 day no hassle returns
- Free delivery in the UK Mainland on a date that suits you
In the box with every Tredz bike is:
- Free Tredz 9 key trail tool
- Free Tredz pedal spanner
- Free basic pedals
- Tredz drawstring kit bag
- 16 point quality control check sheet
- Basic bike setup instructions
- Free Cycle Plan insurance voucher (8 weeks)
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | Hi-Ten Steel Tubes, DT Gusset, American BB, Seat Stay U-Brake, 1-1/8" H/T, w/ Removable Rotor Tabs |
Fork | GT FS Design, Hi-Ten 2pc. Steerer & Tapered Legs, 31mm OffSet, 3/8" Axle Dropouts |
Headset | 1-1/8" Threadless, Steel |
Stem | GT Top Load, 1-1/8", Cold Forged Cap, 32mm Rise, 40mm |
Bars | GT Freestyle 2pc., Steel, 8.375"H x 28"W, 3° Up, 11° Back |
Front Brake | Aluminum U-Brake w/ Soft Compound Pad |
Rear Brake | Aluminum U-Brake w/ Soft Compound Pad |
Brake Lever | Alloy U-type |
Speed | 1 |
Rims | Alloy Single Wall, 36h |
Front Hub | Innova 20 x 2.2" |
Rear Hub | Steel Body, Loose Ball, 14mm Adapter x 180mm Axle, 9T Cassette, 36h, 17mm Nut |
Spokes | Stainless Steel, 14g |
Front Tyre | Innova 20 x 2.2" |
Rear Tyre | Innova 20 x 2.3" |
Seat Post | Alloy, 25.4mm x 200mm |
Saddle | Railed |
Chainset | GT Power Series Cr-Mo 3pc., 170mm Arms, 19mm x 8T Cr-Mo Spindle, GT 25T Steel Chainwheel |
Bottom Bracket | American Loose Ball Bearing |
Chain | KMC Z410 |
Cassette | 9T 1pc. Driver |
Pedals | GT Low Profile FS Platform Design |
BMX Size guide
Kids BMX Size Chart
Rider Height |
BMX |
||
Feet & Inches |
Centimetres |
Approximate Age |
Wheel Size |
3'7" - 4'0" |
110cm - 122cm |
5 - 7 years |
16" |
4'0" - 4'10" |
122cm - 147cm |
7 - 11 years |
18" |
4'10" - 6'4" |
147cm - 193cm |
11+ years |
20" |
Adult BMX Size chart
20” BMX bikes can be sized on top tube length. A taller rider will suit a longer top tube. Though some riders might wish to experiment with top tube length to suit different riding styles, below is a suggestion.
Rider Height |
Top tube length |
5’0” – 5’5” (152 – 165cm) |
20” – 20.5” |
5’5” – 5’10” (165 – 178cm) |
20.75” |
5’10 – 6’0”+ (178 – 183cm+) |
21”+ |
Cruiser BMX Sizing
BMX Bikes with wheels larger than 24” are known as cruisers and will suit riders taller than 5’0” 152cm.
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