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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Shipping Policy

Free shipping on all orders for bikes, apparel, parts & accessories for any order over $25 in the United States. 

*Please allow for 5-7 days of transit time as all orders are shipped via ground shipping.

*If an order is placed on Friday, please allow 2-3 days for processing. 

Please reach out to sales@gtbicycles.com if you have any questions.

Return Policy

We accept returns and exchanges on items purchased from GTBicycles.com for (30) thirty days from the date of purchase in accordance with our return policy below.

Details

  • The bike or part must be in its original packaging to receive a 100% refund.
  •  If product is unused but protective packaging has been removed or has major damage, we will refund 75% of the order.
  • We do not accept returns on apparel.
  • Please allow for 7-10 days to process the return and issue refund.

*Protective packaging includes: foam, cardboard, zip ties, plastic axle covers, warning decals and reflectors.

Please reach out to sales@gtbicycles.com to start a return.

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.

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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