Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2015 GT Speed Series Pro 20-inch
Previous used estimate
$286 - $294
Actual value depends on condition, size, and local demand.
Value Guide market data · 2015 GT Speed Series Pro 20-inch
12-month projected trend
— %
Direction and magnitude, not judgment
vs. category average
4%
Drops faster than category avg
Price over time - 2015 GT Speed Series Pro 20-inch
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Speed model years
2021$359 - $369▲ 26% vs. 2015
2020$263 - $270▼ 8% vs. 2015
2019$224 - $230▼ 22% vs. 2015
2018$219 - $226▼ 23% vs. 2015
2016$226 - $232▼ 21% vs. 20152015$286 - $294Currently viewing
2014$286 - $2940% vs. 2015
2013$228 - $235▼ 20% vs. 2015
2012$219 - $225▼ 23% vs. 20152000$165 - $170▼ 42% vs. 20151999$193 - $198▼ 33% vs. 2015Overview
About this bike
GT earned its wings way back in the early BMX race scene, and the Speed Series is the culmination of all those years of knowledge and refinement. Everything about the Pro is fast—we're talking about the hydroformed aluminum frame with a power-boosting BB30 bottom bracket, the tapered carbon fork, and the Alienation wheels with svelte sealed-bearing hubs. GT supplies their own stiff 2-piece cranks for to snap out of the gate and the chainring is CNC'd to shave grams off the bike and seconds off the clock. The Speed Series also sports chromoly bars and an integrated seat clamp, which holds an SDG I-Beam post and saddle. Looks like the best place to check this bike out, aside from the shop, is on the podium.
Specifications
- Category
- BMX
- Component Fork
- GT Full Carbon w/tapered steerer
- Component Hubs
- GT Superlace, aluminum
- Component Stem
- GT CNC Race
- Product Family
- Speed
- Component Frame
- GT Speed Series hydroformed butted-aluminum
- Component Tires
- Tioga Power Block, 20 x 1.75
- Component Brakes
- Rear: Promax linear-pull
- Component Pedals
- GT platform
- Component Saddle
- SDG Patriot I-Beam
- Component Crankset
- GT hollow-forged 2-piece aluminum, 175mm
- Component Seatpost
- SDG I-Beam
- Component Handlebar
- GT Interceptor, chromoly
- Component Wheel Set
- Front: Alienation Deviant; Rear: Alienation 440
- Component Chainrings
- 44T
- Component Tape Grips
- GT DOHC
- Component Brake Levers
- Promax
- Component Bottom Bracket
- BB30
- Component Fork Brand Model
- GT Full Carbon w/tapered steerer
- Component Frame Construction
- GT Speed Series hydroformed butted-aluminum
- Frame Construction
- GT Speed Series hydroformed butted-aluminum
- Fork Brand & Model
- GT Full Carbon w/tapered steerer
- Hubs
- GT Superlace, aluminum
- Tires
- Tioga Power Block, 20 x 1.75
- Crankset
- GT hollow-forged 2-piece aluminum, 175mm
- Pedals
- GT platform
- Bottom Bracket
- BB30
- Seatpost
- SDG I-Beam
- Saddle
- SDG Patriot I-Beam
- Handlebar
- GT Interceptor, chromoly
- Stem
- GT CNC Race
- Brake Levers
- Promax
- Brakes
- Rear: Promax linear-pull
- Chainrings
- 44T
- Fork
- GT Full Carbon w/tapered steerer
- Frame
- GT Speed Series hydroformed butted-aluminum
- Tape/Grips
- GT DOHC
- Wheel Set
- Front: Alienation Deviant; Rear: Alienation 440
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.