Slammer Dirtlip

Nomadic off the grid artist and lifelong BMX rider, Dirtlip, has a stand-out style that is both edgy and fun. After lending their artistic talents to numerous GT projects over the years, collaborating on a limited-edition bike was a no-brainer. Jump on one before they’re gone!
 
The Slammer is the perfect first bike. At home in the neighborhood or the skatepark allowing a beginner rider to get their start without the high price tag.
  • 100% Hi-Ten, Tapered Legs, 31mm Offset
  • GT NBS tires/ Single Wall Rims
  • GT Power Series Cr-Mo 3pc. Cranks
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Built for a rider

Progressive geometry, big soft tires, clean straight cable, railed junior saddle, and 8.5” 2pc handlebars.

More than just a bike for beginners

The short 20-inch top tube and the responsive geometry makes it easier for young riders to maneuver while they learn bike control.

Dirtlip color and graphics

Dusty Blue paint finish with punchy Dirtlip graphics on the headtube, top tube, downtube, seat tube, fork legs, and handlebar.

Frame

frame 100% Hi-Ten Steel Tubes, DT Gusset, American BB, Seat Stay U-Brake, External 1-1/8" H/T, Removable Rotor Tabs
sizes available O/S
fork 100% Hi-Ten, Tapered Legs, 31mm Offset
wheel size 20

Wheels

rims Alloy Single Wall, 36h
front hub Steel Loose Ball 3/8" Axle
rear hub Alloy Semi-Sealed 14mm Cassette
front tire GT NBS 2.4"
rear tire GT NBS 2.4"
spokes Stainless Steel, 14g

Drivetrain

rear cogs 9T 1pc. Driver
chain KMC S1
crank GT Power Series 3pc Chromoly 170mm, 19mm x 8T Spindle, GT NBS 25T Steel Chainwheel
bottom bracket American Loose Ball Bearing
pedals GT Logo PC Platform

Cockpit

handlebar GT 2pc Freestyle, 100% Hi-Ten Steel, 8.5"H x 29"W, 3°Up, 11° Back
stem GT NBS Top Load 40mm, 32mm Rise
grips GT Super Soft Flangeless
headset 1-1/8" Threadless, Steel
seatpost Alloy, 25.4mm x 200mm
saddle Railed saddle

Brakes

brakes NBS Alloy U-Brake w/ Soft Compound Pad
brake levers NBS Alloy
Please note that, based on component availability and other factors, specifications are subject to change without notice.

Fit Guide

12"
2'10" - 3'7"
14"
3'1" - 3'7"
16"
3'7" - 4'0"
18"
4'0" - 4'10"
20"
4'10" - 6'5"
24"
4'10" - 6'5"
26"
4'10" - 6'5"
29"
4'10" - 6'5"

Geometry

Sizes (in) One Size
Top tube actual 20
Head tube angle 75 °
Seat tube angle 71 °
Standover 7.87
Head tube length 4
Wheelbase 34.89
Front center 21.85
Chainstay length 13
Bottom bracket height 11.57
Seat post diameter 1
Axel to crown 12.6
Dropouts 14mm
Head tube type A-Headset
Brake mounts Welded
Rider area 21.77
Bottom bracket type American
Fork rake 1.2
Axel to crown 12.6

What is included with the bike?

  • Owners Manual
  • Pedals
  • Assembly tools are NOT included

How does the bike arrive?

Our simple assembly process makes it possible to use your skills to assemble your GT at home. GT bikes will arrive 80% assembled. To get out riding, you will need to first install handlebars, seatpost, front wheel, brake rotor (if applicable) and a set of pedals. Click here to learn more about how your bike will arrive. Also, please reference the owner’s manual, included with the bike, to ensure your bike is assembled properly.

Is this bike eligible for GT Connect?

No, this bike is not eligible for GT Connect. Bikes purchased over $1000 from GTBicycles.com, can be assembled for free, by a local shop. Click here to learn more about GT Connect.

Is touchup paint available?

Unfortunately, touchup paint is not available at this time as our paint codes are unique to our painter.

GT Tech Book

GT Owner's Manual