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2011 GT Mach One Pro 20

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Overview

Brand
GT
Model family
Mach One
Model year
2011
Category
BMX · race
Sizes
20" WHEEL / 19.5" TOP TUBE
Wheel size
20

Drivetrain

Speeds
1
Chainrings
1
Electronic
false
Total gears
1

Build

Fork
GT BMX design, 1-1/8" Cro-Mo steer, 1-1/4" OD blades
Stem
GT Branded, Aluminum
Tires
GT Wing design, 2.125" front, 1.75" rear
Brakes
front: Alloy Side-Pull Caliper; rear: Tektro alloy V-type; levers: Tektro, 319, Aluminum
Saddle
Mini Street Design, 7mm Rails
Wheels
rims: Aluminum, 36 Hole, 31Mm Width; front hub: GT Mohawk, Aluminum shell, 36 hole; rear hub: GT Mohawk, Aluminum shell, 36 hole; spokes: 14G
Cassette
16t Freewheel
Crankset
GT forged 3-piece type, 175mm/ `06 design GT steel, 42T
Seatpost
Aluminum, 25.4 x 250mm
Handlebar
GT BMX design, Hi-Ten, 7" rise

Spec from GT's official 2011 catalog (PDF), specification chart on PDF page 151, column "MACH ONE PRO 20""; the catalog prints no prices. Fix round 2026-10-21: every row of this column re-read with a third reader (pdftotext -table, which keeps each row label level with its cells); values that the earlier two reader pass merged with a neighbouring column or dropped are now as printed. Wheel size from the page's size or name row (the tire row gives no diameter). Frame: Single down tube design, V-brake on seat stays, 1-1/8" head tube Bottom bracket: Steel, Ball Type Chain: KMC Z410 Headset: VP-A74F HD steel, extra deep cup engagement, 1-1/8" threadless Pedals: BMX Platform Design, Aluminum Body, Fixed Pins Grips: GT Wing Waffle Design, Kraton Material Seat clamp: Alloy, GT Wing Logo Extras: Pad Set Nipples: Brass

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