27.5 INCH FULL SUSPENSION BIKES
Yes, kids as young as 11 can fit a 27.5 inch wheel bike, amazing. The advantages of the bigger wheels; traction, speed, roll-over, definitely helps in some scenarios but generally the bigger wheeled bikes are not as playful as a similar sized 26 inch wheel bike. Two options exist: 1) a kids specific 27.5 bike or 2) an adult xs/s 27.5 bike. The kids specific 27.5 bikes can generally fit kids a couple inches shorter but the differences in stand-over, stack height and reach with the xs adult bikes are sometimes neglligible...so dig into the geometry numbers. Also, still pay attention to weight for the younger kids. If you are total MTB heads like us, grab a small frame and build a master piece. Check our video below.

Rocky Mountain Reaper 27.5
We really like the Reaper platform for kids as Rocky has a great bike here at a competitive price. The shorter reach of around 371-383 mm make it a small fitting 27.5 which is nice to take advantage of the bigger wheels but do keep in the mind the listed standover is quite high comparatively, 792mm. Ride 9 adjustable geo lets you set a 66.4-67.6 HA and 424-426 mm CS. The 27.5 model has 150 mm front travel with a RockShox Recon Gold fork and the rear 140mm suspension works amazing. Maxxis Minnions , Race Face 165mm cranks, 11-51 Deore Cassette and a dropper post round out a smart build. Like the 26 model, I would switch out would be the Shimano MT4100 brakes to something with a better lever and more power. We really like this for a kid who spends equal time climbing, shuttling and lift access.
Weight: 31.4 lbs | MSRP: $2850 | Min Rider height: 4'11 | Where to buy: Rocky Dealer

Canyon Neuron Young Hero 27.5
Two sizes in essentially a XXS and XS neuron 130mm rear travel trail bikes. No dropper but the routing is there. Both bikes see 165 mm Cranks, 67 degree HA, 74.5 STA, 430 mm stays and 130mm Forks. Reaches of 378 cm (xxs) and 398 cm (xs). Lots of value here but a heavier Judy fork in 29er configuration (this is weird as there are great 27.5 forks available) and sram SX components are also heavy. Does have a nice tubeless ready wheelset and 2.25 inch tubeless ready tires. You can also look to the XXS and XS mens and womans Neurons as they are the same frame and offer different builds with dropper posts but 170mm cranks and more money. UPDATE: The new build available in Europe comes with a Manitou Machete 130mm fork (a far better fork for the kids). OUR FULL REVIEW HERE
Weight: 30.1 lbs | MSRP: $1899 | Height Range: XXS 144-155cm XS 155-165cm | Where to buy: Canyon

Trailcraft Maxwell 27.5
As young as 11 can get on this 120mm trail bike with 120 or 140 mm fork options. 11-46 or 10-51 T rear cassette, 165mm custom cranks, tubeless 2.25 inch wide tires, great geometry (64.5-66.5 HA, 74 STA, 425 mm CS, 685mm Standover) and overall light weight make this an exceptional light weight bike for kids. A modern longer 425mm reach ad to the stability and capability of the bike. Stealth dropper compatible and KS Lev available with builds. As with all Trialcrafts, the build leaves nothing to be changed and these bikes are made to climb extremely well in addition to descending single track like rockets. This bike excels for the enduro climbing kids out there that like a fast single track descender and will pop into the bike park on occasion to crush some jump trails. Choose the 140 fork for the gnarlier kiddo.
Weight: 24.75-27.5 lbs | MSRP: $2999+ | Height Range 4'11-5'6 | Where to buy: Trailcraft Cycles

VPACE Moritz 27.5
A fantastic super small fitting 27.5 inch full suspension 130mm travel bike with 140m Fox fork. Reach 415 mm, 65 degree head angle, 75 degree seat tube, 435 mm chainstays, 415mm reach, 145mm cranks, 11 spd 10-50 cassette, dropper post, 28 or 30T front chainring, 2.25 Nobby Nics...a lot to love here. The 145mm cranks make sense as this bike fits smaller kids than most 27.5 inch bikes and the bottom bracket is low. It's light, slack enough and very capable. This is an equal climber and descender that is no stranger at the lift access bike park for kids to get after it! UPDATE: No longer shipping to North America.
Weight: 27 lbs | MSRP: $3500+ | Minimum Height: 4'7 (140+cm) | Where to buy: VPACE

Marin Rift Zone 27.5
Wow, this bike offers a ton of value and will get more kids into mountain biking because of it, well done Marin. The XS size has a reach of 410mm, 579mm stack, 66.5 HA, 430mm chainstays, and a standover of 647mm. Cranks come in at 170mm, you get a Rock shox recon fork with solo air spring, motion control damper but heavier steel stanchions. No dropper on the Rift Zone 1 but the other builds do. You could easily throw one on with its internal routing for $150. 10-51T rear Cassette, clutch derailleur, hydraulic brakes, Crown Gem tires and 120mm/130mm travel make this an absolute winner of a bike for this price and weight. Also available in two different builds with higher end components dropper post etc.
Weight: 31.5 lbs | MSRP: $1899-$2999 | Min rider height: 4'8 | Where to buy: | Bikes Online

Trek Fuel EX5/EX7
This is a great 140mm front 130 mm rear travel trail bike that fits really nice an XS for kids. The Jump up to the EX7 is probably worth it to get the weight down and the better suspension. The XS has a reach of 395 mm, Head Angle of 66 degrees, Stack height of 559 mm, Chainstays of 436 mm, and 75 seat tube angle. You get 100mm dropper on both builds and 170mm cranks.
Weight: 31-34 lbs | MSRP: $2449-$3249 | Minimum Height: 4'6-5"1 | Where to buy: Trek

Rokk 26/27.5
A cool convertible 26/27.5 inch 160 mm travel frame that uses a geo chip to keep the chainstays and BB height normalized between wheel sizes. Rock Shox Pike 160 mm fork, Sram NX 11-50T, Sram G2 brakes, pivotal seat, 165mm cranks, and maxxis highroller 2.4 tires. Geo is 63.2 HA, 74 STA , 1143mm wheelbase, 22mm BB drop, 439mm rear center, and 372mm reach.
Weight: 30 lbs | MSRP: $3600 | Min/Max inseam: 27-32 inches | Where to buy: Spawn

Norco Youth Sight 27.5
A brawler of a bike, the spec on this bike packs a punch. 140mm Rear and 150mm Pike upfront, this is a capable suspension package. A 650mm standover and 395mm reach, this is a small fitting 27.5. 63.5 HA, 425mm chainstays and a 77 degree STA make it a very progressive geo in a kids package. Dropper post, Maxxis minions, 165mm cranks, and 11-50T cassette finish the build. Unfortunately , the SRAM SX stuff adds to weight which is pushing it for smaller kids. Great Bike Park bike that can get up the hills with a little effort.
Weight: 33 lbs | MSRP: $2999 US | Rider Height: 4'7-5'2 | Where to buy: Norco

Canyon Spectral Young Hero
A nice aggressive trail bike from Canyon at a very good price for 11-14 crowd. Like the young Neuron you do get lower end heavier SS drive train parts and a heavier steel stanchioned 150 mm fork. The frame is great with a cable cover and well thought out 140mm rear travel with kinematics for the kids. Another win on the build is Race Face wheelset plus the DHF front tire for grip and Aggressor for rolling and cornering. Crank length is good at 165 cm and a good length 125mm dropper post. In an ideal world, I would pay more for an alloy stanchioned lighter fork (Recon Gold) and would love to see something like a Microshift AdventX drivetrain instead of the heavy 12spd SX stuff. Great geo with a 66 Head angle, 373 Reach, 430 Chainstays and a 74 degree Seat tube angle.
Weight: 32.5 lbs | MSRP: $1899 | Height Range: 2XS 148 -158 cm (4'10-5'2) | Where to buy: Canyon

Commencal Clash 27.5
Like the Norco, this bike has great suspension components but the overall package is really heavy for small kids at 35 lbs after pedals. The geo is really nice with 65 HA, very small 380mm reach, 741 mm standover, 76 STA and 434 chainstays but I have a hard time getting over the weight unless you were spending more to lighten it up or have a strong ox of a kid that rides lift access most of the time. At 160mm front and rear travel it is a very capable bike on steep, rooty/rocky descents. Good bike park bike that will be a handful to climb for smaller kids.
Weight: 35 lbs | MSRP: $2999 | Rider height: 4'9-5'5 | Where to buy: Commencal

Polygon Siskiu T7 27.5
What you get here for this price is so amazing for a 150mm front/140mm rear travel bike. Recon fork with great damper and air spring, 10-51T 1x12 Deore drivetrain, 170 mm cranks, 150 mm dropper, 4 piston front brake for more power and great hans dampf tires. Very modern geometry with a size small 440m reach, 76.5 STA, 65 HA, playful 425 chainstays, stack height of 594mm , and standover of 667mm. And like all Bikes Online bikes, free shipping to lower 48, 14 day no hassle returns, and lifetime warranty of polygon frames. We can't over state how pumped we are to see bikes like this at this price from the likes of Polygon and Marin. At 440mm reach it really is for teens over 5'4 mark.
Weight: 34 lbs | MSRP: $1899 | Min rider height: 5'1 | Where to buy: Bikes Online