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The 2019 GT Stomper Ace 20 is a confidence inspiring, performance mountain bike for kids around the ages of 6-8 with chunky tyres and a great frame geometry.


GT Stomper Ace 20 2019 Kids Bike Chartreuse

  • €231.84
£207.99 £259.99
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  • GT Stomper Ace 20 2019 Kids Bike Chartreuse £207.99
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At Cycles UK, we pride ourselves on excellent customer service and aim to ensure our customers are 100% happy with their purchase. In the unlikely event that you are not, please feel free to return your goods within 90 days of receipt of them, with proof of purchase for a full exchange or refund. All items can be returned to us providing they are returned in their original condition – unused (unless the goods are faulty). All Mail order purchases must be returned by the customer to our head office address unless arranged otherwise. Depending on the reasons for returning an item, postal charges could apply.


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If you wish to return an item that is unsuitable or not required, you will be liable for the return delivery. If you want to try a different size or style, then, delivery will be charged again to post the item back to you.

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GT Stomper Ace 20 2019 Kids Bike Chartreuse

Season : 2019

Brand : GT

Code : G54409U70OS

Weight : 0.03KG

The 2019 GT Stomper Ace 20 is a confidence inspiring, performance mountain bike for kids around the ages of 6-8 with chunky tyres and a great frame geometry.

If you've got the kind of kids who just can't seem to stay clean, maybe it's time to get them pedaling through the dirt right alongside you. The multispeed Stomper mountain line will get them out on the trails and riding confidently, with a LegitFit kids' sizing based around Schwinn's proven SmartStart idea that has them starting faster and pedaling easier.

The GT Stomper Ace 20 is the perfect bike to introduce young ones to the world of mountain biking. With 20" wheels and GT's Legitfit frame design, the bike is easy to pedal and handle, inspiring confidence and allowing your kids to keep up with mum and dad!

A 1x7 Shimano drivetrain and Tektro brakes make the bike rugged and reliable whilst carrying the performance of an adult bike. The wide tyres mean your little one can explore with complete freedom and rip up the trails right by your side. They provide a smooth, bump-absorbing ride and traction to handle off-road routes with confidence.

  • €231.84
  • $218.98
  • $313.65
  • kr2,413.32
  • kr2,055.68
  • kr1,727.44
  • $332.72
  • ¥23,493.69

GT was founded in 1979 by Gary Turner and is still one of the big names in the cycling industry today. Many of the names in the GT mountain bike range have been around since the beginnings of the sport and older mountain bikers will know names like the Zaskar and Karakoram. GT Bicycles don't just trade off their heritage though, they continue to make cutting-edge bikes with regular updates to their range to reflect the latest trends in technology and the mountain bike scene. GT continues to impress with their trusted Aggressor and Avalanche models that are well suited to the beginner or intermediate rider alike. 

Read our 2019 GT BIKES EXPLAINED blog post.


Technical Information

MODEL CODE - G54409U_19
FRAME - 20" GT LegitFit Design, Alloy w/ Replaceable Hanger
FORK - GT Hi-Ten Steel, 1-1/8" Threadless Steerer
CHAIN - KMC Z50, 7-speed
CRANK - Prowheel w/ Double Guard, 110mm, 30T
BOTTOM BRACKET - Cartridge Sealed
PEDALS - GT BMX Flat Pedal, Resin
SHIFTERS - Shimano Revo Twist Shifter For Small Hands, SL-RS36, 1x7
COG SET - Shimano FW, 14-28, 7-Speed
RIMS - double wall, w/ Machined Sidewall, 28h
WHEELS - TIRES Kenda Small Block Eight, 20 x 2.10"
FRONT HUB - Alloy front QR, Freewheel rear QR
WHEELS SPOKES - Stainless Steel, 14g
BRAKES - Alloy Linear Pull
BRAKE LEVERS - Tektro 3-Finger, Linear Pull
HANDLEBAR - Alloy Riser bar, 30mm rise, 580mm
STEM - Alloy Ahead, 30mm
HEADSET - 1 1/8" Ahead
SEAT POST - Alloy Micro Adjust

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