GT Stomper Ace 20"

Name: GT Stomper Ace 20"
Brand: GT

2022 YouthGeneral youth Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £350 Last known price
Suspension: Rigid
Wheels: 20″
Drivetrain: 1 × 7 30t / 14–28t
Gear range: 200%
Frame: Aluminum
Brakes: Rim brake

Sizes

Size guide

One Size

The manufacturer did not publish rider heights for these sizes.

Components

12 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

20" GT LegitFit Design, Alloy w/ Replaceable Hanger Not identified

Suspension

1 part

Fork
- GT

Drivetrain

6 parts

Bottom bracket

Cartridge Sealed Not identified
Cassette
- Shimano Tourney TZ MF-TZ500
MF-TZ500
Chain
- KMC Z7 7 speeds
Crankset
- Prowheel 30t
Rear derailleur
- microSHIFT M21 Rear Derailleur 6/7 Speed Long Cage 7 speeds
M-21L
Shifters
- microSHIFT

Brakes

2 parts

Brake levers
- Tektro
Brakes
- GT

Wheels and tires

5 parts

Front hub

Alloy, QR Not identified
Rear hub

Alloy Freewheel, QR Not identified
Rims

All Terra Double Wall, 28h Not identified
Spokes

Stainless Steel, 14g Not identified
Tires
- Kenda Small Block Eight

Cockpit and contact points

7 parts

Grips
- GT
Handlebar

Alloy Riser Bar, 30mm Rise, 580mm Width Not identified
Headset

1 1/8" Ahead Not identified
Pedals
- GT
Saddle
- GT
Seatpost

Alloy Micro Adjust Not identified
Stem

Alloy Ahead, 30mm Not identified

Sizes and geometry

1 size

Rider-height ranges are not published for these sizes.

Size

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 7
Smallest sprocket: 14
Largest sprocket: 28
Lowest gear: 21.4 in
Highest gear: 42.9 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 2.1″
Wheel material: Aluminum
Wheel size: 20″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.2 km/h
Highest gear: 16.4 km/h

Total gear range 200%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 21.4–42.9 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2022 builds
Specification	This bicycle GT Stomper Ace 20"	GT Stomper Ace 24"	GT Stomper Ace 26"	GT Stomper Prime 20"	GT Stomper Prime 24"	GT Stomper Prime 26"
Frame
Fork material	Steel	Not informed	Not informed	Steel	Not informed	Not informed
Suspension
Suspension configuration	Rigid	Hardtail	Hardtail	Rigid	Hardtail	Hardtail
Front travel	Not informed	50 mm	100 mm	Not informed	50 mm	100 mm
Drivetrain
Rear sprockets	7	7	8	6	7	7
Smallest sprocket	14	Not informed	Not informed	14	14	14
Largest sprocket	28	Not informed	Not informed	28	28	34
Lowest gear	21.4 in	Not informed	Not informed	21.4 in	25.7 in	22.9 in
Highest gear	42.9 in	Not informed	Not informed	42.9 in	51.4 in	55.7 in
Brakes
Brake type	Rim brake	Mechanical disc	Mechanical disc	Rim brake	Rim brake	Rim brake
Other specifications
Suspension	Rigid	Hardtail	Hardtail	Rigid	Hardtail	Hardtail
Wheel size	20″	24″	26″	20″	24″	26″
Fork spring	Not informed	Coil	Coil	Not informed	Coil	Coil