Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2021 GT Speed Series Pro 24 XL
Value Guide market data · 2021 GT Speed Series Pro 24 XL
12-month trend
11%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 GT Speed Series Pro 24 XL
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Speed model years
2021$986 - $1,145Currently viewing
2020$814 - $945▼ 17% vs. 2021
2019$781 - $907▼ 21% vs. 2021
2018$865 - $1,004▼ 12% vs. 2021
2016$1,116 - $1,296▲ 13% vs. 2021
2015$1,414 - $1,642▲ 43% vs. 2021
2014$1,414 - $1,642▲ 43% vs. 2021
2013$1,135 - $1,318▲ 15% vs. 2021
2012$1,074 - $1,247▲ 9% vs. 20212000$747 - $867▼ 24% vs. 20211999$1,060 - $1,231▲ 8% vs. 2021.jpg)
1998$1,171 - $1,360▲ 19% vs. 2021
1997$1,228 - $1,426▲ 25% vs. 20211996$763 - $886▼ 23% vs. 20212021 Speed Series Pro 24 XL lineup
Overview
About this bike
2021 GT Speed Series Pro 24 XL value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- GT BMX Pro Race, 100% Cr-Mo 1 1/8" Steerer, Tapered Legs, 3/8" Dropouts
- Frame
- GT Speed Series MK7 Elite Race Design, 6061-T6 AL, Alloy Formed and Butted Speed Metal Tubes, AL CNC/Forged Quick Change Disc Dropout SyStem, BB86, Taper 1-1/8" to 1-1/2" Integrated H/T
Drivetrain
- Groupset
- 2021 GT Speed Series Pro 24 XL
- Bottom Bracket
- Sealed BB86
- Chain
- KMC Z1 Narrow, 3/32"
- Chainrings
- 41T
- Crankset
- GT Forged Alloy 2pc., 180mm Arms, 24mm Hollow/ Cr-Mo Spindle, 41T AL CNC Chain Ring, Alloy Chain Ring Bolts
- Freewheel
- 18T Cog
Brakes
- Brakes
- Promax Hydro Disc Rear, 140mm Rotor (Rear Only)
Cockpit
- Handlebar
- GT Speed Cr-Mo 8.375"H x 29"W, 8° Sweep, 4° Up, Taper Cross Bar
- Headset
- 1-1/8"-1.5" Taper Integrated Design, 45X45 Degree Sealed Bearings
- Saddle
- BOX Echelon
- Seatpost
- Integrated
- Stem
- Promax Impact Top Load, 53mm
- Grips
- GT Statement Double Lock-on Grips
Wheels & Tires
- Front Tire
- Kenda Konversion Pro Race, 24 x 1.75"
- Rims
- Alloy Double Wall, 36h
- Spokes
- Stainless Steel, 14g
Pedals
- Pedals
- GT Low Profile FS Platform Design
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.