Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2018 GT Speed Series Pro
Previous used estimate
$271 - $279
Actual value depends on condition, size, and local demand.
Value Guide market data · 2018 GT Speed Series Pro
12-month projected trend
13%
Direction and magnitude, not judgment
vs. category average
6%
Drops faster than category avg
Price over time - 2018 GT Speed Series Pro
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Speed Series model years
Overview
About this bike
Get your head in the game and your mind on the track with the GT Speed Series Pro. The lightest aluminum race frame on the market features a race-ready geometry and quick-change dropouts so you are prepared for every condition the day throws your way. High-end components from BOX marks a serious race machine, and the drivetrain has been specifically spec'd for light weight, stiffness, and snappy power transfer. This bike flies over doubles like they're one big roller, and gets you in and out of a berm faster than you can think. When every pedal stroke counts, count on Speed Series.
Specifications
- Subtype
- BMX
- Category
- BMX
- Component Fork
- BOX "X5" Pro Carbon 20mm fork
- Component Hubs
- Front: GT Speed Series Alloy CNC body, sealed bearings Rear: GT Speed Series, alloy CNC body, 4 Sealed Bearings, 6-pawl 72-point engagement cassette
- Component Size
- 20.75-inch
- Component Stem
- Promax Impact top load, 53mm length
- Product Family
- Speed Series
- Component Axles
- Front: 20mm thru-axle Rear: Female w/ 3/8" allen bolts w/ AL washers
- Component Chain
- KMC Z610HX
- Component Color
- Neon Yellow
- Component Frame
- GT Speed Series MK7 Elite Race design, 6061-T6 aluminum, formed and butted tubes, reverse dropouts, BB86
- Component Brakes
- Rear: Promax linear pull, 108mm cold forged arms w/ 31mm brake pad adjustment
- Component Pedals
- GT low profile FS platform design, PP material, Boron steel axle
- Component Saddle
- BOX Echelon
- Component Headset
- 1-1/8 – 1.5" Tapered integrated design, 45x45 degree sealed bearings
- Component Crankset
- GT Forged Alloy 2-Piece, 175mm Arms, 24mm hollow alloy spindle
- Component Handlebar
- GT Speed Cr-Mo, 8.375"H x 29"W, 8° back, 4° up, tapered cross bar
- Component Seat Post
- AL integrated w/ saddle, 272 x 135mm
- Component Chainrings
- 44T CNC aluminum, AL chainring bolts
- Component Front Tire
- Tioga Front: Power Band 20 x 1.85 Rear: Power Block 20 x 1.75
- Component Tape Grips
- GT Statement double lock-on
- Component Brake Levers
- Promax V-Point click lever AL 2 finger lever w/ reach adjust
- Component Bottom Bracket
- BB86 sealed bearings
- Component Accessories Extras
- GT 6061 AL CNC chain tensioners
- Hubs
- Front: GT Speed Series Alloy CNC body, sealed bearings Rear: GT Speed Series, alloy CNC body, 4 Sealed Bearings, 6-pawl 72-point engagement cassette
- Crankset
- GT Forged Alloy 2-Piece, 175mm Arms, 24mm hollow alloy spindle
- Pedals
- GT low profile FS platform design, PP material, Boron steel axle
- Bottom Bracket
- BB86 sealed bearings
- Chain
- KMC Z610HX
- Saddle
- BOX Echelon
- Handlebar
- GT Speed Cr-Mo, 8.375"H x 29"W, 8° back, 4° up, tapered cross bar
- Headset
- 1-1/8 – 1.5" Tapered integrated design, 45x45 degree sealed bearings
- Stem
- Promax Impact top load, 53mm length
- Accessories & Extras
- GT 6061 AL CNC chain tensioners
- Axles
- Front: 20mm thru-axle Rear: Female w/ 3/8" allen bolts w/ AL washers
- Brake Levers
- Promax V-Point click lever AL 2 finger lever w/ reach adjust
- Brakes
- Rear: Promax linear pull, 108mm cold forged arms w/ 31mm brake pad adjustment
- Chainrings
- 44T CNC aluminum, AL chainring bolts
- Fork
- BOX "X5" Pro Carbon 20mm fork
- Frame
- GT Speed Series MK7 Elite Race design, 6061-T6 aluminum, formed and butted tubes, reverse dropouts, BB86
- Seat Post
- AL integrated w/ saddle, 272 x 135mm
- Tape/Grips
- GT Statement double lock-on
- Color
- Neon Yellow
- Size
- 20.75-inch
- Front Tire
- Tioga Front: Power Band 20 x 1.85 Rear: Power Block 20 x 1.75
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.