Entry to BMX Racing shouldn’t cost an arm and a leg. The Mach One Pro is ideal for a beginner 5'6"-5'10".
Key Features:
- GT Top Load Stem
- Hi-Ten Steel Fork
- Influence by Speed alloy frame with reverse dropouts
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | GT Mach One Race MK2, 6061 Alloy, Euro BB, Reverse Dropouts, V-Brakes, 1-1/8" Integrated H/T |
| Fork | GT BMX Race, Hi-Ten Steel 1 1/8" Steerer, Tapered Legs, 3/8" Dropouts |
| Headset | 1 1/8" Integrated Design, 45X45 Degree Sealed Bearings |
| Stem | GT Top Load, 1-1/8", 50mm |
| Bars | GT Race, Steel, 8.25"H x 29"W, 3° Up, 11° Back |
| Front Brake | Alloy V-type |
| Rear Brake | Alloy V-type |
| Brake Lever | Alloy V-type |
| Speed | 1 |
| Rims | Alloy Single Wall, 36h |
| Front Hub | Steel Body, 36H, 3/8" Axle |
| Rear Hub | Steel Flip Flop Thread-on Body, Freewheel, 36h, 3/8" Axle |
| Spokes | Stainless Steel, 14g |
| Front Tyre | GT Wing 20 x 1.75" |
| Rear Tyre | GT Wing 20 x 1.75" |
| Seat Post | Alloy, 27.2mm x 200mm |
| Saddle | Railed |
| Chainset | GT Power Series Tubular Cr-Mo 3pc., 175mm Arms, 19mm x 8T Splined Spindle, Steel Spider, GT 44T Steel Chainring |
| Bottom Bracket | Euro Sealed Bearing |
| Chain | KMC S1 |
| Cassette | 16T Freewheel |
| 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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No longer available
Sorry you missed the GT Mach One Pro 20w 2021 - BMX Bike.
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