GT Stomper Ace 20w 2023 - Kids Bike
Small wheels don’t mean small fun: this is GT’s premium off-road, all-terrain, all-action first mountain bike. Lightweight aluminium frame and rigid fork built with LegitFit design and plenty of Shimano gears plus V-brakes mean this bike is super-easy to ride and handles like a dream. Remember that feeling of barrelling down the dirt track and coming home covered in mud while grinning from ear to ear? THAT!
Key Features:
- Improved Geometry bikes with the LegitFit system feature geometry adjustments to improve ergonomics for youth statures. The result: Increased stability, comfort and confidence for a wider range of riders.
- Easier Pedaling bikes with the LegitFit system have their pedal positions moved slightly forward. The result: Makes it easier to pedal.
- Better Positioning bikes with the LegitFit system have narrower crank and pedal positions that match the width of a child’s hips. The result: A stronger, more natural pedal stroke.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | 20" GT LegitFit Design, Alloy w/ Replaceable Hanger |
Fork | GT Hi-Ten Steel, 1-1/8" Threadless Steerer |
Headset | 1 1/8" Ahead |
Stem | Alloy Ahead, 30mm |
Bars | Alloy Riser Bar, 30mm Rise, 580mm Width |
Front Brake | GT V-brake |
Rear Brake | GT V-brake |
Brake Lever | Tektro 3 finger |
Rear Mech | Shimano Tourney |
Shifters | Shimano Revo Twist Shifter, SL-RS36, 7-speed |
Speed | 7 |
Rims | All Terra Double Wall, 28h |
Front Hub | Alloy, QR |
Rear Hub | Alloy Freewheel, QR |
Spokes | Stainless Steel, 14g |
Front Tyre | Kenda Small Block Eight, 20 x 2.10" |
Rear Tyre | Kenda Small Block Eight, 20 x 2.10" |
Seat Post | Alloy Micro Adjust |
Saddle | GT MTB |
Chainset | Prowheel w/ Double Guard, 30T, 130mm |
Bottom Bracket | Cartridge Sealed |
Chain | KMC Z7, 7-speed |
Cassette | Shimano TZ500, 14-28, 7-speed FW |
Pedals | GT BMX Flat Pedal, Resin |
Junior Bike Size Chart
Approx. Age |
Height (cm) |
Type / Wheel Size |
1 - 4 |
77 – 105cm |
Balance |
2 - 4 |
85 – 105cm |
12" |
4 - 6 |
105 – 117cm |
14" |
5 - 7 |
112 – 125cm |
16” |
6 - 8 |
117 – 132cm |
18” |
7 - 10 |
125 – 136cm |
20” |
10+ |
136+cm |
24” |
Read our kids bike size guide for more information on kids bike sizing.
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