Adventure made easier.

Meet the Hellion 20

The Helion 20 is a performance-driven MTB featuring a triple-butted aluminium frame with a CNC'd chainstay yoke, threaded thru axles, sliding dropouts, and internal cable routing for strength, stiffness, and adaptability. Its long, low, and slack geometry boosts confidence while delivering playful handling on techy trails. The narrow-wide chainring and forged cranks ensure power and efficiency. With a Richey Jr cockpit, 80mm RST Spex front suspension plus SRAM and Shimano on the drivetrain and brakes respectively, you’ve got an incredible comp level bike for your future super star.

Closer look

The full story

A performance optimised aluminium frame

Built for performance, the Hellion 20 features a triple-butted aluminium frameset with a CNC'd chainstay yoke that’s precision engineered to absorb big hits like a champ.
The frame tubing has been deliberately crafted to balance strength (at the pressure points) with lightness (everywhere else), to ensure we don’t add unnecessary weight or hinder progress.
Threaded thru axles ramp up frame stiffness while sliding dropouts enable handing and size tweaks as little riders progress.
The Hellion 20 features internal cabling and comes dropper post ready, making installation of your preferred post a dream.

Long, low and slack

That’s the assignment and we understood it.

The Hellion 20 is built for performance with a geometry optimised for speed, technical acumen and confidence on the gnarly bits.

The low centre of gravity keeps them balanced in the berms while the slack head tube angle takes (some of the drama) out of descending. The short seat stays give the bike a playful responsive feel (while also making manuals just a little easier to master).

A no fuss, full gas chainset

The crankset and single ring set-up give the Hellion 20 an awesome mix of performance, safety and pedalling efficiency that you simply won’t find on other bikes this size.

The narrow wide chain ring stops the chain from flapping and slipping and works in harmony with 127mm cranks for pedalling efficiency.

The single ring set up saves weight while allowing progressive young riders to focus fully on the trail.

Anatomically designed cockpit

The Richey Jr cockpit is anatomically designed for progression and control. When everything fits right, steering becomes more precise, more controlled. The lock on grips prevent hand slip in the inevitable wet muddy conditions.

Ritchey Logic have been at the forefront of component design for the past 50 years. We’ve collaborated with them for over a decade, producing some of best age specific components to ever grace a kids’ bike.

Big kid forks, little kid bike

The Hellion 20 comes equipped with 80mm of smash proof front suspension courtesy of RST Spex. Featuring the same levels of adjustability typically found on much bigger kids’ bikes, the Hellion 20 can withstand pretty much anything little rippers decide to throw at it.

Fine tune the float with adjustable air suspension, compression and rebound to dial in their ride according to the demands of their skill set, terrain or current weight.

Lightweight, adjustable brakes

Featuring a lightweight, smooth modulation, plenty of adjustability and ultra reliable braking, it’s no wonder we’re such big fans of Shimano’s Deore MT500s.

Braking feedback is predictable with a smooth modulation that prevents unnecessary emergency stops while the 160mm 6 bolt rotors give bold riders the confidence they need to go hard, and stop harder.

A SRAM GX drivetrain

The SRAM GX 1x10 is a robust, efficient, and versatile drivetrain that balances simplicity with performance. The low-maintenance setup which saves valuable weight without sacrificing performance. With its smooth, accurate shifting, superior weight and robust build, there’s a reason why SRAM GX is the drivetrain of choice for so many pros.

MTB wheels that go hard

Fully sealed bearing hubs, tubeless compatible, double wall rims and optimised spoke count means these wheels rip.
Because there’s no point speccing a great bike with weak wheels.

Sealed bearings keep mud, water and corrosion at bay while double wall rims give you twice the confidence on rocks and roots.

The optimised spoke count means you won’t have to worry about buckled wheels while thru axles makes the rare times you do need to swap tyres a breeze.

Specs and Geometry

Specification
 
STANDOVER HEIGHT54CM
FRAMETRIPLE BUTTED AL6061, INTERNAL CABLING, DROPPER READY
FORKRST SPEX, 80MM TRAVEL, 15mm THRU AXLE
STEERERTUBE AL6061
CRANKSSAMOX 127MM DIRECT MOUNT, NARROW Q FACTOR
PEDALSER CNC'D AL6061, PLATFORM, STUDDED, CARTRIDGE BEARING
BOTTOM BRACKETER EXTERNAL CUP, THREADED, SEALED CARTRIDGE BEARING
RIMS20 X 28H, DOUBLE WALLED TUBELESS COMPATIBLE
REAR HUBCNC'D STRAIGHT PULL AL6061, 12x142 THRU AXLE
FRONT HUBCNC'D STRAIGHT PULL AL6061, 15x100MM THRU AXLE
AXLESTHRU AXLES AL7075, 15MM FRONT, 15MM REAR
CHAINKMC X10
CHAINRINGCNC'D STEEL 30T NARROW WIDE
WEIGHT9.6KGS W/O PEDALS
SHIFTERSRAM GX TRIGGER RH 10SPD
REAR CASSETTESRAM PG1020 11-36T, 10SPD
BRAKESSHIMANO DEORE BR-MT500, 160MM ROTORS
LEVERSSHIMANO DEORE BL-MT501
FRONT TYREVEE CROWN GEM SKINWALL 20x2.25", 72TPI FOLDING
REAR TYREVEE CROWN GEM SKINWALL 20x2.25", 72TPI FOLDING
HEADSETSEMI INTEGRATED, 1 1/8" CARTRIDGE BEARING
STEMRITCHEY OS FORGED AL6061, 35MM REACH
BARS560MM RITCHEY OS DOUBLE BUTTED AL6061, 18MM RISE
GRIPSER LOCK ON KRATON 92MM
SEAT POSTRITCHEY, 30.9MM x 225MM, AL2014
SADDLEER WINGED, RAILED
SEAT CLAMPPROMAX QR, 34.9MM
DERAILLEURSRAM GX 10SPD SHORT CAGE
SPEC NOTICEEvery effort has been made to ensure accuracy throughout this website. However, Early Rider reserves the right to change prices and bike specifications without prior notice
Geometry
 
AWheelbase880mm
BHead Angle67°
CSeat Tube Length245mm
DChainstay Length335mm
ESeat Tube Angle73°
FStandover Height535mm
GTop Tube Length455mm
HHead Tube Length100mm
IStack468mm
JReach312mm
KFork Length403mm
  • 5 stars: 15 (88%)
  • 4 stars: 2 (12%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
P
PoLoViCe (Germany)

best bike ever

C
Cullen
Progression machine

In the few months of owning this bike my kid (just turned six) has progressed so much. He was riding the seeker 16x which is a great bike. The Hellion has taken him to the next level. His confidence and ability to ride more difficult trails has exploded. He is now able to ride much longer and farther. He is so proud of his bike and loves riding it every day. He says that he doesn't like toys anymore...just his bike.

P
Pablo Cognat
This is an amazing bike!

Our sons have been riding nothing else than Early riders since they can ride, our 5 year old switched from the seeker x16 to the Hellion 20 as we’re doing more and more gravity!
He’s enjoying the bike and it’s way nicer in reality than in pictures !

C
Christian Krüttli
Tout simplement parfait !

Nous avons offert le Hellion 20 à notre fils Gaël Dao 5 ans et demi et il est aux anges. Ce vélo à vraiment un look particulier et on le distingue vite des autres. Gaël Dao est toujours en phase d'apprentissage, mais c'est facile et il n'a aucun problème pour changer les vitesses. Le seul bémol est que je ne trouve pas de protection pour le système des vitesses que je pourrais fixer à la roue arrière droite. Bref, tip top !
Bravo EarlyRider 👏 👏 👏

A
Andrey Volodin
Hellion 20

Very nice built, light, good geometry. My 6 years old sone loving it!

B
Brian Russell
Ultimate Kids Mountain bike

Upgrading from 16” wheels to 20” wheels allowed our 5 year old to progress overnight, rolled over sections of trail he walked just the week before. The geometry and low stand over gave him confidence, another great build from early rider.

I was surprised how quickly he figured out the thumb shifters, downshifting up hills he normally walked. The bike required minor indexing to get the rear derailleur shifting smooth which is expected for a new bike.

100% recommend

P
Pascual Orestano
Awesome bike

My Son is super happy, by far the best bike for kids.

Ive bought every wheel size starting from the balance bike, top quality and components

N
Nathan Swanson
Thanks

Nice

E
Erk Klopp
Feedback Hellion 20

Great look and quality ... my son is super happy :-)

G
Georges Aboud
Georges Aboud

OK quality, last year bike from the same series Hellion 20 was better quality

Hi Georges, thanks for your feedback. The only change has been in the rear derailleur (and shifter) from Shimano to SRAM GX. The SRAM is better suited to the Hellion - short cage and stiffer spring.

C
Clinton Heffernan
Hellion 20

Awesome bike my son loves and is ripping the trails with it.

L
Linus Andreen
Great bike!

Hreat bike with premium gears that my other sons can inherit in time.

T
Tom Collister
Excellent bike and company

Excellent bikes, excellent service. Came quickly and the bike is amazing, can’t really ask for much more!

S
Stefano Moriggia
Very good Bike

Very good Bike with standard components, My girl makes quick progress on it

T
Tobias Rosskopf
Great Bike.

The bike is great. We upgraded from a seeker 16 and our little one could immediate get going with the bike and we were riding trails just one day after the bike arrived.

Only downside is the price which however seems justified for what you get.
Also the assembly instructions didn’t quite match with what had to be done. For instance I had to mount and adjust the front disc brake calliper which wasn’t mentioned in the instructions at all. Not a problem if you are used to Mountainbikes which most buyers of this bike will be. But still a little oversight in the instructions

E
E.V
Super Qualitativ and a real treasure

What can we say: the best bike we ever had its price worth every penny

A
Andrew Barlage
Great little bike

All told, this is a seriously nice bike for such a young rider. Our little guy was on a Seeker 16 for a couple years, and he'd both grown enough and progressed enough that bigger wheels were warranted. We've currently got it converted to a singlespeed so he can get used to the new bike before we add shifting into the mix. The sliding dropouts made the conversion super easy, and were ultimately the main reason we stuck with Early Rider instead of giving more consideration to other options. Had there been an option to add a reasonably priced, suspension-corrected aluminum fork in addition to the suspension fork, I'd have probably jumped on that as well since this bike, while crazy light for a kids bike, represents a pretty substantial increase in weight from the Seeker 16. The RST fork works well, my kindergartner is heavy enough to actually have it work like a suspension fork and not a pogo stick or a heavy rigid fork (which, honestly, I wasn't entirely expecting it to achieve and have been pleasantly surprised by), but he would likely benefit more from having a lighter bike to pick up and haul uphill than he will from having the travel, at least for now.

The tires included with the bike are not tubeless-ready, but they were hooked into the rim well enough that I felt safe in converting the wheels to tubeless and hoping they'd seal. A couple passes of tubeless tape (stock config has old-school rubber rim strips), a couple valves, and a couple ounces of sealant later and we're in business, with these non-tubeless tires holding air better than some of my tubeless tires. The rims are pinned and sleeved as opposed to welded, so there was some minor air and sealant escaping initially from the joint, but they sealed up just fine after a few seconds and likely wouldn't have leaked at all if I'd used 27mm tape instead of 25mm tape. My only other minor complaint is the less-than-ideal routing for the derailleur housing. It enters on the drive side and creates a kind of awkward bend. It shifted fine in the stand before I removed the derailleur and shifter, but I have some concerns for the long term. Since the internal routing doesn't use a full-length guide through the frame, I may just route the rear brake hose through the drive side and the derailleur housing through the NDS opening once we throw the gears back on. I've had much bigger complaints on much more expensive big boy bikes, so for the only "issues" to be the path the housing takes while still working just fine and a minor tubeless setup issue that I was at least partially responsible for, the Hellion is doing pretty great so far and I expect it will serve our kid well for the next few years. Much as I'd love to luck out and get him onto a 26" or 27.5" bike with a tiny frame for his next rig so I can stretch the next bike out for a couple more years, we'll probably be back for a Hellion 24 sometime in the next few years!

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