X-Rated Spine BMX Bike - 20" Wheel
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X-Rated Spine BMX Bike - 20" Wheel 204229

X-Rated Spine BMX Bike - 20" Wheel is rated 4.6 out of 5 by 80.
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Price matched and built ready to ride* 
*Price match terms and conditions apply.
  • Age Range : 7+ Years
  • Frame Material : Robust Steel
  • Number of Gears : 1

Step 1: Select Quantity

For fitting, please change quantity to 1 and add each item and fit separately

Step 2: Add Spine Sticker

Price: £5.00

Personalisation puts your child’s name onto their bike (up to 9 characters).

Please note adding a personalised sticker can add up to 7 working days onto your order. For unbuilt bikes, the sticker will be included in your order and not applied to your bike. Learn more

Step 2: Would You Like It Built?


You can either collect your built bike in store or have it delivered. Learn more

  • £10.00 - Bike Built and Collected In-store (per bike)
  • £20.00 - Bike Built and Delivered (per bike)

Please note: If you select a Bike Built for collection in-store you'll book a collection day and time. Once chosen, this date and time is unable to be amended.

Step 4: Select Delivery Option

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FREE Click & Collect
Home Delivery

X-Rated Spine BMX Bike - 20" Wheel

BMX bikes are great fun for adventurous kids and tricksters who want to show off at the skate park, or just build up speed riding freestyle. The X-Rated Spine BMX bike is an excellent choice for kids aged 7+ who have mastered cycling and are looking to take trick riding to the next level with a BMX.
  • Age Range: 7+ yrs
  • Strong steel frame
  • Front and rear U-Brakes
  • 33/14 gearing for quicker acceleration
  • Wanda colour wall tyres
  • Free build on bikes (£/€250 and over) by our expert bike technicians. Learn more
  • Unlimited lifetime safety checks
  • Lifetime guarantee on frames and rigid forks*
  • Kids Cyclecare available
*Please see our T&C's here

More About The X-Rated Spine BMX Bike Kids’ Bike

A brilliant budget BMX

BMX bikes are great fun to ride and have a few features that mean they can handle ramps, kickers and rails with ease. The X-Rated Spine will certainly be able to keep up with the pace, with a sturdy steel frame, strong and lightweight alloy wheels and chunky Wanda tyres helping to soak up the hard landings and wipeouts that are part and parcel of BMX riding.
The X-Rated Spine BMX Bike also features front and back brakes for improved safety over other single-brake BMX’s, plus there’s a chain cover to help fingers and clothes from getting caught up. Looking good certainly isn’t difficult on the X-Rated Spine BMX Bike either, with a slick black finish, coloured tyre walls and a textured print saddle. It’s definitely a head turner!
Looking for more tips on buying a BMX bike? Check out or BMX Buyer’s Guide for more inspiration.
X-Rated Spine BMX Bike Accessories

Your mini BMX rider needs to both look the part and stay safe, so grab some additional accessories to fully kit them out! Help them to stay fashionable with a pair of X-Rated Fingerless BMX Gloves and to stay safe with the ultra-cool Mongoose Skull Kids’ Bike Helmet.

Free build on bikes (£/€250 and over) by our expert bike technicians. Learn more

Building a bike can be tough if you’ve never done it before, so save yourself a job by getting Halfords to build it for you! We’ll put your child’s X-Rated Spine BMX together quickly and safely, plus we’ll get rid of all the packaging.
X-Rated Spine BMX Bike Maintenance

It’s likely that the X-Rated Spine BMX bike will get some serious usage, so make sure you keep your child’s bike in top condition with. We’ll give it a once over to check that everything is still in working order and that it’s safe to ride, as well as making any required adjustments. Don’t forget that you can always take the X-Rated Spine BMX Bike to your local Halfords store for as many free safety checks as you need.
Our Guarantee

We take the quality of our bikes seriously, which is why we offer a lifetime guarantee on the X-Rated Spine BMX Bike’s frames and forks.

Size Guide

Wheel Size Age (Years) Height (Inch) Height (cm)
Balance First Bike 2' 11" - 3' 5" 88 - 105
12" 3 - 5 3' 3" - 3' 8" 98 - 112
14" 4 - 6 3' 5" - 3' 10" 105 - 117
16" / 18" 5 - 7 3' 8" - 4' 2" 112 - 127
20" 6 - 9 3' 10" - 4' 6" 117 - 136
24" 8 - 11 4' 2" - 4' 9" 127 - 145
26" 9 - 12 4' 6" - 5' 0" 138 - 154
For Children 11+ please consider our range of adult bikes. Below gives an indication of the sizes you should look for. (For accurate sizing please view size guide on individual bikes).
Frame Size Age (Years) Height (Inch) Height (cm)
14" 11 - 14 4' 10" - 5' 6" 148 - 168
14"/17" 12 - 15 5' 0" - 5' 8" 154 - 174
17" 13 - 16 5' 3" - 5' 10" 160 - 178