About Bike Delivery

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Timelines

Delivered ready to ride in 10 to 14 days.

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Place your order

Select the product you are interested in, click delivery, type in your postcode, and select Bike Delivery. If this is not available there is no available stock nearby.

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Order Confirmation

Once your order is placed we will be in contact with you within 2 hours to confirm your order.

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Bike Build

Your bike will be built up at your local 99 bikes by one of our expert mechanics and safety checked prior to delivery.

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Delivery

Your bike is delivered to your door by a 99 Bikes expert who will walk you through your new bike and answer any questions you may have.

Next Business Day Delivery

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Timelines

Delivered before 8pm next business day.

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Place your Order

All orders placed before midnight will be delivered next business day before 8pm.

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Picked for Delivery

Your local 99 Bikes store will prepare your order ready for dispatch.

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Delivery

One of our friendly 99 Delivery team members will deliver your order.

About Box Bike Delivery

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Timelines

Delivered boxed in 2 - 4 weeks

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Place your order

Select the product and size you are interested in, click delivery, add your postcode, then select bikes delivered boxed. If this option does not appear, there is no available stock.

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Confirmation

Once your order is placed we will be in contact with you within 2 hours to confirm your order

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Bike Visually Inspected

Your bike will be visually inspected by our mechanics prior to delivery.

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Bike Sent For Delivery

Your bike will be sent boxed through a courier to your delivery address. Authority to leave must be provided.

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Delivered

Your bike will be delivered to your delivery address within 2 - 4 weeks

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Get Your Bike Built

We recommend organising your bike to be assembled by a qualified mechanic to ensure safety.

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Deliver to:

GT Air 20 BMX Bike Gloss Turquoise (2020)

Out of stock
Request a Price Beat

Up to 12 months interest free

Features

Perfect Ride Guarantee
If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »

Free Bike Build
We'll build your bike for free when you click and collect at any 99 Bikes store.

First Free Tune-up
Every bike come with a complimentary free tune-up and safety check.

Please note that, in order to reduce production and delivery times, bike specifications are subject to change by the manufacturer without notice. Please be aware that these changes might not be reflected on product pages and images.

The GT Air BMX Bike is built to allow riders starting out in BMX to get some serious air. When you get some air you need to land comfortably and the Hi-Ten Steel frame and forks can handle some rough landings on any ride. While the GT Power Series 3 piece cranks are durable and reliable so that you can trust in your BMX bike. The Air is an all-round capable BMX bike which is built with removable tab holes so that you can upgrade to gyro if you need. The finishing touch is the semi sealed cassette hub with a 25t sprocket and a 9t driver for optimised freestyle performance. The GT Air BMX Bike does it all, on the ground and in the air, this bike is a fully loaded shredder.

Features

  • Hi-Ten Steel Frame
  • GT FS Design, Hi-Ten 2pcforks
  • GT Power Series Cr-Mo 3pc crank
  • Aluminum U-Brake w/ Soft Compound Pad
More Information
SKU GTG45100U2020
Season 2020
Size 20inch
Click & Collect Yes
Frame GT FS Design, Hi-Ten Steel Tubes, DT Gusset, American BB, Seat Stay Mounted U-Brake, External 1-1/8" H/T, w/ Removable Rotor Tabs, Odyssey Springfield Brake compatible
Frame Material Steel
Fork GT FS Design, Hi-Ten 2pc. Steerer & Tapered Legs, 31mm Offset, 3/8" Axle Dropouts
Fork Material Steel
Speeds ## x ##
Front Gears Single
Crankset GT Power Series Cr-Mo 3pc., 170mm Arms, 19mm x 8T Cr-Mo Spindle, GT 25T Steel Chainwheel
Pedals GT Low Profile FS Platform Design, PP Material, Boron Axle
Chain KMC S3
Brake Type Rim Brake
Brakes Aluminum U-Brake w/ Soft Compound Pad
Brake Levers Alloy
Cassette 9T Loose Ball 1pc. Driver
Wheel Size 20"
Tyres INNOVA 20 x 2.3"
Rims Alloy Single Wall, 36h
Hubs Steel Body, Loose Ball, 14mm Adapter x 180mm Axle, 9T Cassette, 36h, 17mm Nut
Bottom Bracket American Loose Ball Bearing
Handlebar GT Freestyle 2pc., Steel, 8.375"H x 28"W, 3°Up, 11° Back
Headset 1-1/8" Threadless, Steel
Grips GT Super Soft 155mm Single Compound w/ GT removable plug
Stem GT Top Load, 1-1/8", Cold Forged Cap, 32mm Rise, 40mm
Saddle Railed
Seatpost Alloy, 25.4mm x 200mm
Sizing 20 Inch
Top Tube Length 20
Top Tube Length 20.x"

20" Freestyle BMX Sizing Chart

Rider's Height (cm)
140
145
150
155
160
165
170
175
180
185
190
195
19.5-20"
Top Tube
20-20.5"
Top Tube
20.5-21"
Top Tube
21+"
Top Tube

BMX Bike Geometry Diagram

Legend

ST Seat Tube

TT Top Tube

CS Chain Stay Length

HTA Head Tube Angle

STA Seat Tube Angle

BD Bottom Bracket Drop

HT Head Tube

FL Fork Length

R Reach

S Stack

WB Wheel Base

Size

20inch
Wheel Size 20"
Frame Size 20inch
TT Top Tube (mm) 20.0
HTA Head Tube Angle (°) -
HT Head Tube (mm) -
S Stack (mm) -

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