Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2018 GT Slammer
Previous used estimate
$85 - $88
Actual value depends on condition, size, and local demand.
Value Guide market data · 2018 GT Slammer
12-month projected trend
1%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2018 GT Slammer
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Slammer model years
Compare Slammer models
1 modelsChoose a different build or frame style to see its value.
Overview
About this bike
A low-maintenance, technique-driven bike for riders looking to improve their freestyle skills, the GT Slammer gets you out sessioning the streets without emptying your wallet. Work on your style, work on your technique, dial-in your transitions. The Slammer's got your back with durable parts and a detangler so you can gain that extra margin of safety with brakes but without them getting in your way.
Specifications
- Subtype
- BMX
- Category
- BMX
- Component Fork
- GT FS Design, Hi-Ten 31.8- 28.6mm tapered legs, 31mm offset
- Component Hubs
- Front: Steel body, loose ball Rear: Alloy body, 1 loose ball, 4 sealed bearings
- Component Size
- 20-inch
- Component Stem
- New GT Top Load, 1-1/8", Cold Forged Cap, 32mm Rise, 40mm Length
- Product Family
- Slammer
- Component Axles
- Front: 3/8" x 150mm heat-treated, 15mm nuts Rear: 14mm x 180mm, 17mm nuts
- Component Chain
- KMC Z410
- Component Color
- Black, Clear, Red, Yellow
- Component Frame
- GT FS Design, Hi-Ten steel tubes, downtube gusset, American BB, removable rotor tabs, Odyssey Springfield Brake compatible
- Component Brakes
- Rear: SST ORYG detangler, aluminum U-Brake w/ soft compound pad
- Component Pedals
- GT Low Profile FS Platform Design, PP material, Boron axle
- Component Saddle
- Integrated saddle w/ post
- Component Headset
- 1-1/8" threadless, steel
- Component Crankset
- GT Tubular Cr-Mo 3pc, 170mm arms, cold-forged Cr-Mo 19mm x 8-spline
- Component Handlebar
- GT Freestyle 2pc, steel, 8.375"H x 28"W, 3° up, 11° back
- Component Seat Post
- Alloy, 25.4mm x 200mm
- Component Chainrings
- 25T GT steel
- Component Front Tire
- Innova Front: 20x2.30 Rear: 20x2.20
- Component Tape Grips
- GT Super Soft 155mm single compound w/ GT removable plug
- Component Brake Levers
- Alloy
- Component Bottom Bracket
- American loose ball bearing
- Hubs
- Front: Steel body, loose ball Rear: Alloy body, 1 loose ball, 4 sealed bearings
- Crankset
- GT Tubular Cr-Mo 3pc, 170mm arms, cold-forged Cr-Mo 19mm x 8-spline
- Pedals
- GT Low Profile FS Platform Design, PP material, Boron axle
- Bottom Bracket
- American loose ball bearing
- Chain
- KMC Z410
- Saddle
- Integrated saddle w/ post
- Handlebar
- GT Freestyle 2pc, steel, 8.375"H x 28"W, 3° up, 11° back
- Headset
- 1-1/8" threadless, steel
- Stem
- New GT Top Load, 1-1/8", Cold Forged Cap, 32mm Rise, 40mm Length
- Axles
- Front: 3/8" x 150mm heat-treated, 15mm nuts Rear: 14mm x 180mm, 17mm nuts
- Brake Levers
- Alloy
- Brakes
- Rear: SST ORYG detangler, aluminum U-Brake w/ soft compound pad
- Chainrings
- 25T GT steel
- Fork
- GT FS Design, Hi-Ten 31.8- 28.6mm tapered legs, 31mm offset
- Frame
- GT FS Design, Hi-Ten steel tubes, downtube gusset, American BB, removable rotor tabs, Odyssey Springfield Brake compatible
- Seat Post
- Alloy, 25.4mm x 200mm
- Tape/Grips
- GT Super Soft 155mm single compound w/ GT removable plug
- Color
- Yellow
- Size
- 20-inch
- Front Tire
- Innova Front: 20x2.30 Rear: 20x2.20
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.