The best kids 27.5" wheel mountain bikes - 2020

In this post, we're looking at an increasingly popular trend in kids mountain bikes - 27.5" wheel bikes designed for younger riders.  As the majority of adult mountain bikes are now fitted with 27.5" (or larger) wheels, it's really not surprising that the top end manufacturers are starting to turn their attention to their kids bikes.

Can't I just buy a XS 27.5" adult mountain bike for my child?

Possibly not. Even if your child can fit the frame of an adult bike, remember that the majority are not designed for younger riders - the suspension may well only work with heavier riders and the brakes will be designed for larger and stronger hands.  If the saddle has to be set so low that the back wheel is above their saddle, they won't be able to shift their weight backwards on descents either. Your Cycle Sprog will have much more control, and therefore feel safer and have a lot more fun on a 27.5" wheel MTB sized correctly for their size and weight.  Of course, it is the case that some teenagers are actually the size and weight of adults so this must be taken into consideration too. I speak from experience!

Here's our selection of the best 27.5" wheel mountain bikes designed specifically for younger riders. We expect more manufacturers to turn to this wheel size in the next 12 months or so. If we've missed off your favourite do please let us know.

Cycle Sprog is an family run, reader supported, website. We belong to several affiliate schemes so may receive a small commission from sales made from links on our site. We do our best to be impartial and recommend products on their quality not whether they are in a scheme.

Stereo 120 Youth (RRP £1699)

Cube are no strangers to the world of full-suspension, producing a broad selection of top quality mountain bikes for the adult market. Of course, they didn't stop at that because kids should get to enjoy the delights of a full-susser too, so a couple of years ago Cube brought out the Stereo 140 Youth - an awesome bike that we were lucky enough to test.

For 2020 Cube has once again created a 27.5" wheel full suspension bike for kids based upon the cutting edge technologies they employ in the adult range. This is based around a custom-sized triple-butted lightweight alloy frameset that comes in two sizes - 13.5" and 16".

Cube Stereo 120 Youth

With 120mm of travel provided by the SR Suntour XCR34 air fork and SR Suntour Edge R shock, there's plenty of fun to be had.

Cube has specified SRAM for the transmission with an Eagle 12 speed setup throughout, featuring 30 tooth chainset and seriously wide range 11-50t cassette to give amazing gear options to cover all eventualities. Braking comes courtesy of Magura MT Thirty with 180mm rotors front and rear, so retardation of speed should not pose a problem.

The Cube Stereo 120 Youth certainly looks amazing and with such a quality specification we're expecting junior riders will be enthused to get out, ride and grin from ear to ear.

BUY NOW: The Cube Stereo 120 Youth at Tredz

SAVE £5 ON THIS BIKE AT TREDZ: Sign up for the Tredz Bikes newsletter (you can do this from the bottom on any bike page) and they'll immediately send you a code to get £5 off your first purchase


Available in a number of frame sizes including a 14" frame size to suit a young teenager, this is an incredible deal on 2019 models at Tweeks Cycles as the specification is truly superb.


Cube Acid Eagle 27.5

With a Rock Shox Recon air fork giving 100mm of travel and a SRAM NX Eagle 12 speed transmission with huge 10-50T cassette, this is a bike with the capability to blitz trails at ease.

Check out the size chart to ensure it fits.

BUY NOW: Cube Acid Eagle 27.5 hardtail at Tweeks Cycles

Cube Reaction C:62 Youth MTB (RRP £1399)

The Reaction C:62 Youth is Cube's light, stiff and fast cross country carbon fibre thoroughbred. Cube, not wanting the adults to have all the fun, have decided to create the Reaction C:62 in 'youth' frame sizes too, once again confirming their dedication to teenage riders looking to enjoy their racing. We managed to get our hands on one at a show and it really is a superb looking bike!

Cube Reaction C:62 Youth xc race bike - a 27.5" wheel kids MTB

Available in 13.5" or 15" frame sizes, the Reaction C:62 Youth is one of the current crop of frame designs incorporating larger wheels.

It comes fitted with the SRAM NX Eagle drivetrain that has a range of gear ratios to get you up, over and through anything fast. With a SRAM Stylo Eagle 32T chainset paired up with the NX Eagle cassette that sports 12 cogs ranging from 11 teeth right up to a monumental 50 teeth, you have no excuses.

Braking comes from respected German brand Magura with 4 pot piston calipers and a 180mm rotor at the front providing the bulk of the stopping power and a lighter 160mm rotor at the rear to balance things up.

There's a front fork courtesy of Manitou's Markor TS which is an air fork giving 100mm of plush travel.

The lightweight carbon fibre frame has internal cable routing to keep things tidy and out of the way and has been designed for taking the punishment and loadings exerted through the frame while racing. With this in mind, there's a tapered head tube with plenty of material in this area. The downtube is also significant in size when you see it in the flesh. The bottom bracket is wide to give stiffness and the rear axle is the latest 148mm boost width, rather than the standard 142mm. The idea behind this is that the increased width gives a shallower spoke angle and this allows for wheels to be built stronger and less flexy, something that has extra importance now wheel sizes are larger than the old 26" standard size.

The Cube Reaction C:62 Youth comes in Cube's Teamline colour scheme that matches a striking matt black finish with complementing blue and red accent colours on various sections of the bike.

There's no doubting, it's a serious bike with a great frame and components.


SAVE £5 ON THIS BIKE AT TREDZ: Sign up for the Tredz Bikes newsletter (you can do this from the bottom on any bike page) and they'll immediately send you a code to get £5 off your first purchase

Whyte 802 Compact 27.5" wheeled mountain bike (RRP £899)

The Whyte range of bikes is pretty extensive, having pretty much something for everybody. The 802 has been designed primarily with women in mind, but with a view of also targeting the burgeoning youth market where bikes that fit are still pretty scarce.

Whyte 802 Compact 27.5 wheel


The frame design has geometry in keeping with current trends with short chainstays to keep things agile. Whyte has chosen to use Shimano's tried and tested Deore M6000 for the 10-speed shifter and rear mech. There's a 28 tooth SR Suntour narrow/wide crankset and an 11-46T cassette at the rear. Forks are the Rockshox Recon RL - an air fork so easily adjustable for rider weight and providing 120mm of travel.

BUY NEW: Whyte 802 Compact from Leisure Lakes Bikes for £899.

BUY SECONDHAND: Whyte 802 from eBay 

Norco Sight Youth 650b (£2295)

Hailing from British Columbia in Canada, the guys at Norco certainly have the right environment in which to build bikes for jumping on and exploring the great outdoors. Based around the 2020 adult Sight, the Youth version is scaled down to ensure it fits correctly with a fantastic specification to boot.

Norco Sight Youth 650b in red

Fitted with a Rock Shox Pike fork giving 150mm of travel at the front and a Rock Shox Deluxe R shock providing 140mm of travel at the rear, Norco has tuned both to take account of lighter riders.

This is a bike designed for all-mountain riding and everything such tough trails can throw at you. There's a dropper post already fitted and the drivetrain is SRAM's 12 speed Eagle setup, complete with massive 11-50 tooth cassette. There can be no excuses!

BUY NOW: Norco Sight Youth from Evans Cycles

TOP TIP: If you sign up for the Evans Cycles Newsletter they'll send you a voucher code to save £5 off your first purchase. You can sign up by scrolling to the bottom of any page on their website - an email should be sent to you within a couple of minutes.

Islabikes Creig 27 (£899)

Islabikes have been very busy updating their range with a fresh new 27.5" Creig joining the range. Islabikes have embraced the fact that kids are pushing the boundaries and redesigned the Creig with a long low trail geometry that will inspire confidence on technical terrain.

Islabikes Creig 24 in Teal

The 27 comes fitted with a Rock Shox 30 Gold air fork, which according to Islabikes is lighter and more tunable than the fork fitted to previous models and provides 100mm travel. Braking is supplied by a SRAM Level hydraulic setup, with a 140mm disc at the rear and 160mm at the front.

The cassette is 11-40T and the new models also take account of customer feedback and see a change from the Grip Shift of previous versions to a new SRAM trigger shift. The wheelset also sees revision with Stan’s No Tubes rims fitted with Vee Tire Crown Gem’s in a width of 2.25” which are tubeless-ready. These are a large volume tyre with tall side knobs for cornering control with plenty of straight-line grip without sacrificing speed.

Islabikes Creig 27.5" - available on the Islabikes website

Islabikes Beinn 27 (£499.99)

Cycle Sprog Reviewed and Recommended bike

Always looking to refine and deliver the right product, Islabikes are first to the 27.5" wheel party with a "do it all" kids hybrid bike that bridges the gap for youngsters who are on the verge of being a teenager (and all the fun that that will bring!)

Islabike Beinn 27

The Beinn 27 comes with the same low centre of gravity of the existing Beinn 26" but with a new frame and  27.5" wheelset to create a bike suitable for kids age around 10 years and up. The drivetrain involves a 32 tooth chainring at the front, with a 7 speed SRAM gripshift moving the cogs on the 11-32T cassette.

As always with Islabikes bikes, there's nothing superfluous about the Beinn 27 and with its slim tubing it exhibits a very lithe appearance and this translates into a lovely lightweight build.  It's a hybrid bike, so will be equally at home on the road as well as trail and is a great 27.5" wheel choice for kids who are into all types of cycling.  Whilst specified with hybrid tyres and pedals you can add MTB equivalents to make this a decent off road, rigid fork bike.

Of course, it's not an official mountain bike, but our reviewer put it through its paces on winter cross country rides in the Lake District. You can read how the Beinn 27 got on here.

The Islabikes Beinn 27 is available to purchase directly from the Islabikes website and has a retail price of £499.99.


BUY SECONDHAND: Islabikes Beinn 27 from eBay 

Commencal Meta HT Junior (RRP €1,249)

For 2020, Commencal continue to commit to providing younger riders with top quality mountain bikes with which to show off their silky skills (usually to less skilled adult riders!). First up we have the Meta HT Junior - a sweet looking enduro 27.5 hardtail designed to pick its way through the trail with scalpel-like precision. The colour is a vibrant red paired up with some amber wall Flow Snap tyres from Vee Tyres. It's a great look - I'm smitten!Commencal META HT JR_2020It comes with 150mm travel from it's RockShox Recon RL air fork and a 1x12 SRAM SX Eagle drivetrain, giving a useful range of gears with its 32T chainset and an 11-50T cassette. There's also a dropper post ready fitted  - sweet!

You can pick up the Commencal Meta HT Junior for €1249 direct from Commencal via their website (they trade in Euros with Sterling conversion available, so prices will fluctuate).

There's also a 27.5 full sus enduro bike named the Clash Junior which, like Commencal's Supreme Junior, is a long travel (160mm) monster of a junior bike!

Orbea range of 27.5 Junior Bikes

Orbea has not rested on its laurels when it comes to the kids and junior segment of the bike market. With a range of 27.5 bikes designed for Juniors, there's a good choice available in this emerging wheel size for this age group. We've outlined one model in the range below, but click on the link to see what else is on offer.

EXPLORE FURTHER: The Orbea range of 27.5 Junior bikes at Tredz

SAVE £5 ON THIS BIKE AT TREDZ: Sign up for the Tredz Bikes newsletter (you can do this from the bottom on any bike page) and they'll immediately send you a code to get £5 off your first purchase

Orbea MX40 in size XS (RRP of £539)

The MX40 is a 2019 model that Tredz are massively discounting just to make way for new stock. It's the Extra Small model only, fitted with a 27.5" wheelset and according to the size guide is suitable for riders between about 4' 9" and 5' 2" tall.

Orbea MX40 mtb in size XS

Specification-wise, it's equipped really well with Shimano hydraulic discs and Shimano Altus gearing which is a triple chainring setup with 27 speeds - more gears to choose from and so a bit more involved than with a single chainring. At the front, there's an SR Suntour suspension fork giving 100mm of travel.

The Orbea MX40 is available in two colour schemes.

BUY NOW: Orbea MX40 in size XS (use discount code) at Tredz

SAVE £5 ON THIS BIKE AT TREDZ: Sign up for the Tredz Bikes newsletter (you can do this from the bottom on any bike page) and they'll immediately send you a code to get £5 off your first purchase

Orbea MX 27 XS Dirt (£377 including discount)

The MX Dirt is a Junior bike sporting a 27.5 wheelset, which is still relatively rare for this group of riders. It comes fitted with 2.35 tyres ready for tackling the trails and a double chainset with 22 and 36 tooth rings that, coupled with the rear cassette, gives a wide spread of gears to cover all eventualities.

Orbea MX 27 XS Dirt 27.5 mtb

At the front, there's an SR Suntour XCE 28 fork giving 100mm of travel. Now, this is a coil spring rather than our preferred air fork, so the options for adjusting to suit the rider is less with this one. However, it does come equipped with Shimano hydraulic disc brakes and Shimano thumb shifters for changing through the gears. It comes in three colourway options, but they're a fast seller so check to see what is available in time for Christmas delivery.

BUY NOW: Orbea MX 27 XS Dirt at Tredz

SAVE £5 ON THIS BIKE AT TREDZ: Sign up for the Tredz Bikes newsletter (you can do this from the bottom on any bike page) and they'll immediately send you a code to get £5 off your first purchase

Cube Stereo 140 Youth 27.5" MTB (OUT OF STOCK)

Cycle Sprog reviewed and recommended bike

We've been lucky enough to have spent most of last year testing out the Cube Stereo 140 Youth and it has proven to be a quality product that has taken the punishment dished out from a typical 12 year old and then come back for more.

Deal on Cube Stereo 140 Youth - 27.5" wheel kids MTB for teenage mountain bikers

With 150mm travel from the SR Suntour Aion forks and a 1x11 SRAM NX drivetrain with wide-range cassette, the Stereo 140 Youth is perfect for all manner of terrain. Fitted with 27.5" wheels it really does give something extra for the younger rider when it comes to negotiating the rough stuff. What's even better is it comes in three different frame sizes, to cater for differing heights of young MTBers.  You can read our full review of the Stereo 140 Youth here.

The Cube Stereo 140 Youth is available throughout the Cube Dealer Network and has a retail price of £1699.


Here at Cycle Sprog, we predict that 27.5" wheel kids mountain bikes become more and more popular over the next few years. If we've missed one out, please do let us know - either in the comments box below or via our Facebook Page

Other posts you may find useful:

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