The 2019 Forme Sterndale MX20 is an aluminium kids mountain bike with 20" wheels and grippy Kenda tyres.


Forme Sterndale MX20 20 inch 2019 Kids Bike Blue

Earn Rewards
When you buy the Forme Sterndale MX20 20 inch 2019 Kids Bike Blue, you will earn of rewards points to spend on your next purchase from us, anything online and instore.

Hassle Free Returns

Return your order within the UK using the Royal Mail tracked service for free.

(Excludes bikes and bulkier items and parcels over 2KG for UK use only)

You can return your Cycles UK order FREE via any Post Office.

  • Print off the Royal Mail label, and attach it onto your parcel.

Click here to print off a label

  • Complete the returns note that came with your parcel and pop it into the parcel with your return.

  • Take your parcel into any Post Office. Most Post Office locations are open 7 days a week, with extended opening hours.

  • Remember to ask for a proof of return receipt.

  • The return can be tracked using the tracking reference from your receipt at

  • We aim to complete returns within 7 working days (excluding weekends and bank holidays).

  • We’ll send you an email as soon as we’ve completed your return, letting you know whether a refund or exchange has been processed. This is usually done within 3 working day of receiving your return back into our warehouse.

  • Any refund will automatically be issued to the payment method you used to place your original order. This typically takes 5 working days in the UK, depending on your payment method issuer.

  • We try hard to accept all returns and they don’t need to be in the original box or bag, as long as they’re securely packed. In the unlikely event that an item is returned to us in an unsuitable condition, we may have to send it back to you.

International Returns

If you wish to return an item that is unsuitable or not required you will be liable for the return delivery. If you wish to then try a different size or style, delivery will be charged again to post the item back to you.
If you feel the product(s) you have purchased are faulty please contact our Customer Service team on 44(0)1268 775265.

Disclaimer: Our website contains links to websites owned and operated by third parties; these are provided solely for your convenience. Cycles UK have no control over these sites and are not responsible for their content or availability.

Forme Sterndale MX20 20 inch 2019 Kids Bike Blue

Season :

Brand : Forme

Code : FOR1890

Weight : 0KG

The 2019 Forme Sterndale MX20 is an aluminium kids mountain bike with 20" wheels and grippy Kenda tyres.

Junior specific frame geometry provides more standover clearance and a lower centre of gravity complete with slightly wider oversized bars and stem, wider Kenda Small Block 8 tyres, safe and powerful Tektro V-brakes and Shimano gearing for improved handling and easy change transmission.


This Bike Is Perfect For

The rider aged 6-8 that is learning what it takes to be a mountain biker and needs safe and easy to use controls as well as high quality parts.


Key Features

  • Wider, higher volume kenda multi-route tyres for all weather grip and improved comfort
  • Wide, easy handling, oversized bar and stem
  • Full shimano transmission with easy to understand twist grip shifters
  • €303.35
  • $278.10
  • $409.26
  • kr3,254.54
  • kr2,559.12
  • kr2,266.71
  • $435.15
  • ¥30,225.00

Whatever age your little one is, they need a bike that fits them correctly so that they can learn and develop the skills to become a keen cyclist like mum and dad!

Kids’ bike sizes are a lot easier than adult bikes. With adult bikes it is the frame that is measured and this can be done in inches, centimetres or simply small, medium and large, depending on the brand. With kids bikes everyone measures them using the size of the wheel. So, when you see a kids bike referred to as a 12” or 20” it is the wheel size they are talking about.


Technical Information

Technical Information

Technical Information


 20" Wheel
  - Forme Alloy
  - Forme Hi Ten Steel
  - Shimano Revo Shiter
  - Shimano Tourney
  - Alloy
  - KMC Z 50
  - Cartridge Type
  - Tektro V Brake
  - Forme Alloy
  - Forme
  - Forme Alloy
  - Forme
  - Forme Alloy
  - Forme Alloy
  - Kenda Small Block Eight
Sizing Information
TT LENGTH (B) 465mm
HT LENGTH (C) 120mm
HT ANGLE (D) 70.0⁰
ST ANGLE (E) 73.0⁰
CS LENGTH (F) 360mm
WHEEL BASE (G) 882mm


Professional Opinion
Product Reviews
Write a review
0 As rated by 0 Customers

Write a review

Your name
Your email address
How would you rate it?
Would You Recomend this product?
Let others know your opinion
Submit Review Close
Have you found the Cheaper?
Ask us to Price Match it now

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.

In Stock; delivered to you in 2-3 days