Advertising Disclosure Mountain Bikes For Kids Age 9 12 Boys Comparison - July 2025
3 Best Mountain Bikes For Kids Age 9 12 Boys In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.7Exceptional | 2  9.6Exceptional | 3  9.4Excellent |
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ModelHuffy Extent Boys Mountain Bike 24 Inch Wheels 18 Gears Cobalt Blue Front Suspension | Model BSTSEL Kids Bike 20Inch Youth Bike Shock Absorber Bike,12.25-Inch Frame,V-Brakes,Suitable for 9-14 Year Old Boys and Girls Mountain Bikes Pink Blue Bicycle (Pink, 20) | Model WSIKGHU 20 Inch Mountain Bike 7 Speed Front and Rear Dual Brake Height Adjustable Bicycle with Fenders, Water Bottle and Compass for 130-150CM, Max 85KG (Pre-Assembled 85%) (Red) |
BrandHuffy | Brand BSTSEL | Brand WSIKGHU |
Reviews | Reviews | Reviews  |
Tech Specs | ||
bike type Kids Bike | bike type Kids Bike, Mountain Bike | bike type Mountain Bike |
color Cobalt blue | color Pink | color Red |
wheel size 24 Inches | wheel size 20 Inches | wheel size 20 Inches |
included components Bell | included components Reflectors | included components Tool Kit |
customer reviews4.0 4.0 out of 5 stars 215 ratings 4.0 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 2 ratings 4.5 out of 5 stars | customer reviews 3.5 3.5 out of 5 stars 6 ratings 3.5 out of 5 stars |
size M | size 20 | size 20 Inch |
brake type Disc | brake type Disc | brake type Disc |
style Modern | style Urban | style Modern |
frame material Chromoly Steel | frame material Aluminum | frame material Aluminum |
Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.7
1HuffyHuffy Extent Boys Mountain Bike 24 Inch Wheels 18 Gears Cobalt Blue Front Suspension
Main highlights- Thrilling Adventures: Explore the great outdoors with the Huffy Extent Boys Mountain Bike, featuring 24-inch wheels and 18 gears for action-packed rides.
- Precision Braking: Equipped with a front disc brake and rear caliper brake for confident and controlled stops.
- Huffy Quality: Enjoy the reliability and durability of Huffy with a limited lifetime warranty, ensuring countless memorable journeys.
- For Young Trailblazers: Designed for kids aged 8-12 and height between 127-144cm, these 24-inch wheels provide a perfect fit.
- Cobalt Blue Cool: The eye-catching cobalt blue frame adds style and charisma to your biking escapades.
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9.6
2BSTSEL
BSTSEL Kids Bike 20Inch Youth Bike Shock Absorber Bike,12.25-Inch Frame,V-Brakes,Suitable for 9-14 Year Old Boys and Girls Mountain Bikes Pink Blue Bicycle (Pink, 20)
Main highlights- 【Unique 3 Spoke Design】 - 20 Inches 3 spoke wheels available for choose, The spcial spoke design help you break the wind resistance and handle pavement, gravel and dirt with ease, It is an ideal present for your kids'birthday
- 【Shock Absorbing Design】 - These all-terrain MTB feature shock-absorbing front forks. The thickened outer wall is more resistant to shocks. The shock absorbers help absorb shocks. The parallel bars can adapt to pressure road conditions. Greatly improve the comfort during riding and allows people to enjoy riding.
- 【High Quality Steel Disc Brake System】-In order to ensure your riding safety, our bicycle's front and rear brakes use high-quality steel disc brake systems, and you can stop your bicycle as soon as 2 seconds.
- 【High Quality Materials】 - Alloy Steel is the ultimate material for a high-end bike. The frame is built by integrated casting without solder joint any more. ensures the long-term use of the bike as it is so easy to ride and highly adjustable. It will grow with your kids, they can handle this bike easily.
- 【Easy to Assemble】 - The kids bicycle for boys and girls comes with 85% assembled and the basic assembly tools in the box. normally it takes 30 minutes for a fresh hand to install the bike, If you have any doubts about the installation, you can check our installation video to help you, If you have any questions, please contact us in time, we will serve you wholeheartedly.
- Recommended Size】18" bike for 4-7 years boys & girls, 20" bike for 6-10 years boys & girls. 22" bike for 8-12 years. 24" bike for 12-16 years. Note: child height may vary even at the same age, please take the height into consideration.
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9.4
3WSIKGHU
WSIKGHU 20 Inch Mountain Bike 7 Speed Front and Rear Dual Brake Height Adjustable Bicycle with Fenders, Water Bottle and Compass for 130-150CM, Max 85KG (Pre-Assembled 85%) (Red)
Why we love it
Adjustable seat for growing kids.
Smooth and stable 7-speed shifting.
Dual brakes ensure safe rides.
Main highlights- 【Shock Absorbing Design】 The spring under the seat absorbs most of the vibration, providing a more stable riding experience even on uneven dirt, sand and mountain roads. The elasticity of the rubber tyres also provides some shock absorption.
- 【Safe Riding】 The bike comes with front and rear dual brakes that provide stable and strong braking power even in bad weather conditions. The non-slip tyres provide excellent grip and stability to ensure a safe ride.
- 【Height Adjustable Bike】 The seat height of the mountain bike can be adjusted from 63-76 cm/24.8-30 inches, so that children with a height of 130-150 cm/4.26-4.9 ft can enjoy a comfortable riding experience, and the maximum load capacity is 85 kg/187 lbs.
- 【85% Pre-Installed】 The 20-inch mountain bike is 85% pre-assembled, and with the help of detailed installation diagrams and installation tools, even beginners can complete the remaining part of the installation with just a little time and effort.
- 【7-Speed Bike】 Seven gears allow kids to choose the right speed for their needs and different environments, making it easy to ride. 7-piece discs are flexible and smooth, allowing for stable and accurate shifting over different terrains.
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Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
