Stomper FS Ace

The Stomper FS takes the tech and features from our adult full suspension line and packages it into a proper youth-focused bike for young riders looking to unlock some extended play out on the trail.

  • SR Suntour XCM fork
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Linkage Tuned Suspension provides a consistent and efficient suspension platform. The 4-bar system is designed to be a highly tunable suspension platform that maintains ground hugging traction even under heavy braking.

Kid friendly & shred-ready

Low standover with 26” wheels provide a confident ride, no matter the type of terrain.

UDH Equipped

SRAM’s Universal Derailleur Hanger is the most accessible hanger on the market. The UDH protects your derailleur against impacts by pivoting back and out of the way and slips slightly when accidents happen. Strong, reliable, easy to find, and even easier to replace!

Frame

frame Stomper FS 26* Frame, 120mm Travel, BSA 73mm, Tapered Head Tube, Boost 12×148mm Thru-Axle, SRAM UDH, 190×42.5mm Shock Mount
sizes available One Size
fork SR Suntour XCR34 Air, 130mm, 15x110mm
rear shock SR Suntour Raidon R, 190x142.5mm
wheel size 26

Wheels

rims WTB ST 25 TCS, 32h, Tubeless Ready
front hub Formula, 15x110mm
rear hub Formula 12x148mm, HG Freehub Body
front tire WTB Vigilante Comp, 26 x 2.3*
rear tire WTB Vigilante Comp. 26 x 2.3*

Drivetrain

rear derailleur MicroSHIFT Advent-X
shifters MicroSHIFT Advent X, 10-speed
rear cogs MicroSHIFT. 11-48. 10-speed
chain KMC X10, 10-speed
crank Prowheel MPX. 30T
bottom bracket Cartridge, square taper
pedals GT Flat Pedal, resin

Cockpit

handlebar Steel Riser Bar, 20mm Rise, 600mm
stem GT Alloy, 35mm
grips GT MTB
headset FSA NO. 42e
seatpost TranzX Dropper, 31.6mm, 80mm
saddle WTB Silverado

Brakes

brakes Hydraulic Disc Brake

Geometry

Sizes (mm) One Size
Seat tube length 255 300 350
Top tube horizontal 452 499 512
Top tube actual 422 495 500
Head tube angle 69.5 ° 67 ° 67 °
Seat tube angle 68 ° 71 ° 75 °
Standover 516 611 665
Head tube length 88 102 102
Wheelbase 839 1002 1041
Front center 474 585 615
Chainstay length 366 417 428
Bottom bracket drop 23 26 35
Bottom bracket height 243 291 308
Fork rake 40 40 40
Trail 57 91 102
Stack 411 512 555
Reach 286 336 350
Travel front 40 60 80
Travel rear N/A N/A N/A

Fit Guide

12" Wheels
2'10" - 3'4"
16" Wheels
3'4" - 4'0"
20" Wheels
4'0" - 4'5"
24" wheels
4'3" - 4'8"
26" wheels
4'3" - 4'8"

GT Tech Book

GT Owner's Manual