Kids Sonic Blade 20 Inch 50.8 cm 6 Speed Gear V Brakes Childrens Mountain Bikes

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The Sonic Blade Mountain Bike is the perfect first bike. Fitted with easy reach brakes, a chain guard and non-slip pedals, this bike is built with safety in mind. The Sonic Blade Mountain Bike comes with an easy to use 6 speed gear system allowing your children to tackle tough terrains with ease. Quality alloy components mean the bike will ride over jumps and through mud with no difficulties. Designed with an adjustable seat and handlebars you can extend the bike as your child grows allowing for long term use. From footpaths to your back garden, the Sonic Blade Mountain Bike will be sure to build your child’s confidence and encourage adventure. 


  • Adjustable handlebar and seat height 
  • Front active suspension to smooth out bumps 
  • Easy to use twist shift 6 speed gearing 
  • Powerful V brakes providing great stopping power
  • Padded comfort saddle 


Minimum Age: 7+ years

Gender: Boys

Number Of Gears: 6

Suspension: Front suspension

Weight: 8 kg

Dimensions: L 110 x W 90 x H 60 cm

Colour : Blue White

Brand: Sonic

Type: Kids bike

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.