Mach One Pro

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".
  • Influence by Speed alloy frame with reverse dropouts
  • GT Top Load Stem
  • GT Power Series Cr-Mo 3pc. Cranks, 110 BCD Spider
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Shipping Policy

Free shipping on all orders for bikes, apparel, parts & accessories for any order in the United States. 

*Please allow for 5-7 days of transit time as all orders are shipped via ground shipping.

*If an order is placed on Friday, please allow 2-3 days for processing. 

Please reach out to sales@gtbicycles.com if you have any questions.

Return Policy

Returns are accepted within 30 days of delivery.

Details

  • The bike or part must be in its original packaging to receive a 100% refund.
  •  If product is unused but protective packaging has been removed or has major damage, we will refund 75% of the order.
  • We do not accept returns on apparel.
  • Please allow for 7-10 days to process the return and issue refund.

*Protective packaging includes: foam, cardboard, zip ties, plastic axle covers, warning decals and reflectors.

Please reach out to sales@gtbicycles.com to start a return.

Contact Us

This bike will come partially assembled. Tools needed for assembly are not included. Please refer to these instructions and build video on how to assemble the bike. This bike is not eligible for the GT Connect build program.

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Mach One Pro

The Mach One Pro is ideal for beginners 5'6"-5'10" of all ages

Frame

frame GT Mach One Race MK2, 6061 Alloy, Euro BB, Reverse Dropouts, V-Brakes, 1-1/8" Integrated H/T
sizes available PRO
fork GT BMX Race, Hi-Ten Steel 1 1/8" Steerer, Tapered Legs, 305mm A/C, 3/8" Dropouts
wheel size 20

Wheels

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
front tire GT Wing 20 x 1.75"
rear tire GT Wing 20 x 1.75"
spokes Stainless Steel, 14g

Drivetrain

rear cogs 16T Freewheel
chain KMC S1
crank GT Power Series Tubular Cr-Mo 3pc., 175mm Arms, 19mm x 8T Splined Spindle, 110 BCD Steel Spider, GT 44T Steel Chainring
bottom bracket Euro Sealed Bearing
pedals GT Low Profile FS Platform Design

Cockpit

handlebar GT Race, Steel, 8.25"H x 29"W, 3° Up, 11° Back
stem GT Top Load, 50mm
grips GT Statement
headset 1-1/8" Sealed Integrated (41.8 x 45)
seatpost Alloy, 27.2mm x 200mm
saddle Railed

Brakes

brakes Alloy V-type
brake levers Alloy V-type
Please note that, based on component availability and other factors, specifications are subject to change without notice.

Fit Guide

Micro
2'0" - 4'0"
Mini
4'0" - 4'4"
Junior
4'3" - 4'7"
Expert
4'6" - 5'5"
Expert XL
5'2" - 5'6"
Pro
5'4" - 5'8"
Pro XL
5'7" - 6'0"
Pro XXL
6'0" - 6'5"
Pro XXXL
6'0" - 6'5"
Pro XL 24"
5'6" - 6'5"

Geometry

Sizes (in) LG
Top tube actual 20.75
Head tube angle 74° °
Seat tube angle 72° °
Standover 7
Head tube length 4.33
Wheelbase 37.46
Front center 23.22
Chainstay length 14.37
Bottom bracket height 11.3
Seat post diameter 1
Axel to crown 12.42
Dropouts 10mm
Head tube type Integrated
Brake mounts V-Brake
Rider area 22.39
Bottom bracket type Threaded
Fork rake 1.38
Axel to crown 12.42

GT Tech Book

GT Owner's Manual