Comas 20" 920R Shimano Disc Bike Expand

Comas 20" 920R Tektro Disc 2021 Bike




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Comas 20" 920R Tektro Disc 2021 Bike

Trials bike for riders up to 7 years of age or 1.40m tall, approximately

The Comas 920R 20" kid bike is the ideal option for transitioning from smaller kid bikes (16" – 18") and adult bikes (20" – 26"). This 20" trials bike offers the same performance as adult bikes, but with optimized geometry for riders up to 7 years of age or 1.40m tall, approximately.

  • Suits riders up to 10 years of age or 1.40m tall, approximately.
  • New design for 2021 with bright orange and black Comas graphics.
  • Built with 160mm forged cranks, Tektro HDM 275 hydraulic disc brakes, 140mm x 20º forged stem, ultralight hubs, drilled rims, Comas 30.6 18t freewheel, etc.

Frame and fork
- Made of high quality AL6082-T6 and lower tube with optimized curve to avoid collisions, bright orange color.
- 20" disc brake fork made of 6082-T6 aluminium and oversized blades.


- Ultralight front hub Disc 100mm 28 spokes, 9mm threaded axle.
- Rear Hub Ultra-light Disc 116mm 32 spokes, 10mm threaded axle, 1.37x24T thread
- Chain tensioner: Eccentric type, 7075-T6, 49 positions
- Front Rim 20", 28 holes, W-profile, Width 32mm, Lightened
- Rear Wheel 19", 32 holes, W-profile, Width 47mm, Lightened
- Spokes: Ultralight 1.8mm
- Nipples: Aluminium
- Tires: 20"x2.25" Trial


- Brakes: HDM 275 hydraulic disc brakes 160mm, Postmount
- Discs: Comas Race 160mm


- Crankset: L160mm, offset 33mm, for threaded freewheel
- Bottom Bracket: Spanish Type L128mm
- Freewheel: Comas 30.6, 18 teeth, red
- Chain: YBN s20, 1/2x3/32
- Sprocket: Comas 15T threaded, 7075-T6, width 12mm
- Pedals: 9/16" Plastic
- Freewheel Protector: Ultralight Comas UCI type (Ring)


- Headset: Comas Semi-Integrated 1-1/8"
- Stem: 140mm and 20º inclination
- Grips: Extra thin foam, 2mm thick
- Handlebar: Carbon fiber, H90mm, L600mm


- WB: 920mm
- RC: 340mm
- BH: +65mm
- HA: 72º
- OFF:+40mm


- Glossy black with white, black and red COMAS graphics

8,28Kg (with plastic pedals)

Additional information:
The parts listed may be subject to change. Any changes on the setup will be notified to the customer before delivering the bike, and the replacement part will be of the same or superior quality to the one listed above.

Some pictures may not match the item described, so please read the description carefully.

This bike is partially set up by our workshop, so the customer will only have to wheels, chain, pedals, and the headset up.

If you have any doubts, please contact to .

SIZE 20"
RIDER HEIGHT 120cm-140cm
Hola. Quería saber si este modelo está disponible en el nuevo color(naranja),o por el contrario sigue estando disponible solo en negro. Ya que no veo opción de escoger color
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