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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One Size

Color

Out of stock

Add a Tool Kit

Don't have some basic bike tools at home? No problem. Add a tool kit to your order to ensure your ride is ready to rip and to help assemble your bike.

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Find a Dealer

This bike will come partially assembled. We offer a free bike build program via GT Connect on every mountain or gravel bike purchased over $1000.

Want to build on your own? Please refer to these instructions and build video on how to assemble the bike.

LTS Suspension

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

Please note that, based on component availability and other factors, specifications are subject to change without notice.

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"

Geometry

Sizes (mm)	One Size
Seat tube length	32.5
Seat tube angle effective	76.5 °
Seat tube angle actual	78 °
Top tube horizontal	46.4
Top tube actual	47.4
Head tube angle	65 °
Standover	67.5
Head tube length	9.5
Stem length	40
Wheelbase	105.8
Front center	63.3
Chainstay length	42.5
Bottom bracket drop	0.7
Bottom bracket height	34
Fork rake	4.6
Trail	11.1
Stack	53.8
Reach	33.5
Travel rear	12.1

What is included with the bike?

Owners Manual
Tool Kit for assembly (Shipped Separately)
Pedals included

Tool Kit Includes:

Torque Key with 2-6mm & T25 Bits
Shock Pump
Pedal Wrench
Cable Cutters

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?

Yes, this bike is eligible for GT Connect. You can have your new bike built for free at your local GT dealer or a bike shop near you. Click here to learn more.

Are the wheels tubeless compatible?

Yes, the wheels are compatible with tubeless, but you will need sealant, valve stems, and tubeless tires to set it up tubeless.

What headset is used on the Stomper FS?

The Stomper FS has a Semi-Integrated, 1-1/8” - 1-1/2” head tube. It utilizes a ZS44/56 internal headset.

What is the max rotor size for the rear brake on the Stomper FS?

The max rotor size on the rear brake is a 203mm rotor. The native brake rotor size without an adapter is 180mm rotor.

What chain guide is compatible with the Stomper FS?

The Stomper FS is not compatible with a chain guide.

What derailleur hanger is used on the Stomper FS?

The derailleur hanger is a Sram Universal Derailleur Hanger (UDH). (Sram Part # 00.7918.093.000)

What is the max tire width on the Stomper FS?

The max tire width is a 2.4in wide tire.

What shock is used on the Stomper FS?

The rear shock Eye-to-Eye / Stroke is 190mm x 42.5mm Metric.

What is the maximum seatpost insertion on the Stomper FS?

The maximum seatpost insertion without a dropper post is 250mm.The maximum seapost insertion with a dropper post is 200mm.

What bottom bracket is used on the Stomper FS?

The Stomper FS uses a BSA/73m bottom bracket.

What is the max rider weight on the Stomper FS?

The max rider weight is 305lbs/138kg.

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

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