Specs and Geometry

Specification
STANDOVER HEIGHT 52CM
FRAMEHAND BRUSHED AL6061, FORGED DROP OUTS
FORKHAND BRUSHED AL6061, FORGED DROP OUTS
STEERERTUBE AL6061
CRANKSCRUX CNC'D AL6061, 110MM
PEDALSER AL6061, CAGE, CARTRIDGE BEARING
BOTTOM BRACKETCRUX EXTERNAL CUP, THREADED, SEALED CARTRIDGE BEARING
RIMS20 X 20H FRONT, 24H REAR, DOUBLE WALLED AL6061
REAR HUBSTURMEY ARCHER 2-SPEED AUTO, 24H
FRONT HUBCNC’D AL6061, HOLLOW 7075 AXLE
AXLESAL6061
BELTEARLY RIDER 970MM x 10.0P x 12MM WIDTH
FRONT SPROCKETCNC'D AL6061, 34T, AL6061 AXLE, DUAL GUARD
WEIGHT7.7KGS W/O PEDALS
REAR SPROCKETCNC'D AL7075, 25T DUAL GUARD
BRAKESTEKTRO 837AL
LEVERSTEKTRO SHORT REACH, JL-352
FRONT TYRESCHWALBE BILLY BONKERS 20 x 2.0", 60TPI WB
REAR TYRESCHWALBE BILLY BONKERS 20 x 2.0", 60TPI WB
HEADSET1 1/8” CARTRIDGE BEARING, CONVENTIONAL
STEMFORGED AL6061, 35MM REACH
BARS560MM DOUBLE BUTTED AL6061, 25MM RISE
GRIPSER LOCKON
 
SEAT POSTAL6061, 27.2MM x 250MM
SADDLEER WING 2
SEAT CLAMP ER BOLT, 31.8MM 
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
AWheelbase870mm 
BHead Angle67° 
CSeat Tube Length270mm 
DChainstay Length340mm 
ESeat Tube Angle73° 
FStandover Height500mm 
GTop Tube Length452.6mm 
HHead Tube Length92mm 
IStack422.9mm 
JReach323.3mm 
KFork Length340mm 

 

Meet the new Belter 20 Auto

The Belter 20 Auto features a lightweight aluminum frame with updated geometry for greater stability and agile handling. The low-maintenance 8mm belt drivetrain pairs with a Sturmey Archer 2-speed automatic rear hub, delivering smooth, gear-free shifting that adapts to the rider's pace. Sliding dropouts, sealed bearing 20" wheels, and Schwalbe Billy Bonkers 2.0" tires ensure a durable, confident ride. Smaller chainring diameters and kid-optimized gearing make this the ideal next step for young urban riders.

The Full Story

Super lightweight beautifully crafted aluminium.

Super lightweight aluminium, beautifully crafted to last for years

We use 6061-grade aluminium in our bikes. It's a fantastic material. Strong yet light, weatherproof and super robust.

It’s also a responsive material transferring more power from the pedals to the wheels. In real terms, this means it’s easier to pedal further for longer.

The benefit is a bike that literally goes the distance.

Geometry to get kids moving

Bike geometry is at the heart of safety, fun, and progress. Even exploring the local neighbourhood demands a capable geometry if we want our kids to safely acquire proper riding skills.

Like all of our Belters, the Belter 20 has a more progressive geometry so that kids can tackle the tightest turns and steepest slopes with confidence and capability.

The Gold Standard for Gearing

The Belter 20 integrates a wide range 2 speed automatic geared hub into our legendary belt drive to produce the ultimate urban explorer.

So whether it’s sailing up hills or riding in the rain you can trust these impressively light, and incredibly durable gears to perform.

It’s combination like this that won the Belter, the only kids bike, ever to win the bike industry's most coveted prize, the Eurobike Gold Award.

Fantastic finish touches

The Belter 20 is equipped with anatomically designed bar and stem, paired with its 19mm inner diameter grips for improved grip and control.

Tyres that won't throw them off track

The Belter Auto 20 runs 2.0”, fast rolling Schwalbe Billy Bonkers tyres as standard, so that developing riding skills is made easier, safer and more enjoyable than the 1.5" tyres typically found on kids bikes.

Their extra volume and grip provide added control over the lumps and bumps and give the cushioning that makes riding more enjoyable.

2.0” tyres are also much more stable, especially in tricky conditions. With a bike that is more stable, you can shorten the rear triangle, and that improves handling and manoeuvrability making the bike more capable still.

Want to get with the program?

Early Rider Adventure Ambassadors

Adventure starts here. The Early Rider Adventure Ambassador crew is for young riders who live to explore, push their limits, and inspire others along the way. As an ambassador, they’ll get exclusive benefits, and a chance to represent Early Rider. Ready to ride?

Learn More