Comas Entry 20" 970mm Bike Expand

Comas Entry Evo 20" 920 mm Bike





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Comas Entry Evo 20" 920 mm

The Comas Entry Evo 20" kids trials bike is an excellent option for young riders who are transitioning from smaller bikes but still don't have the height for an adult trials bike.

The Comas Entry Evo 20" features hydraulic disc brakes, 20" tires, a super-lightweight 6061-T6 aluminum frame, Comas aluminum handlebars, a 130mm x 20º Comas stem, aluminum fork, and an 18:15 gear ratio.

  • Designed especially for riders up to 10 years old or with a height of approximately 1.40 m or less.

In the following list, you can see the components of this bike:

Frame and Fork
- Frame: Comas Entry 20”, 920 mm, Features a headtube, for 1 1/8” headsets, Post Mount disc brake mounts , orange color.
- Fork: Comas Entry 20”, 1 1/8”, Post Mount disc brake mounts, black color.

- Front hub: Comas Entry Disc 28 spoke holes, with rotor mounts, 100 mm spacing, anodized black.
- Rear hub: Comas Entry Disc 32 spoke holes, with rotor mounts, 116 mm spacing, anodized black.
- Chain tensioner: Comas Basic Chains Tugs, black.
- Front rim: Comas 20'', single wall, 32 mm wide, 28 spoke holes, anodized black.
- Rear rim: Comas 20”, single wall, 48 mm wide, 32 spoke holes, anodized black.
- Spokes: Comas 15G (1.8 mm), made of steel, black.
- Nipples: Aluminium 15G, black.
- Rim tape: Comas, white.
- Front inner tube: Comas 20”x 1.75.
- Rear inner tube: Comas 20”x 1.75.
- Front tyre: Innova 20”x2.25”.
- Rear tyre: Innova 20”x2.25”.


- Front brake: Tektro hydraulic  disc brake (Comas version).
- Rear brake: Tektro hydraulic disc brake (Comas version).
- Rotors: Comas Race 160 mm.


- Cranks: Comas JIS (square), 160 mm long.
- Bottom bracket: Comas JIS (square), 124.5 mm axle.
- Freewheel: Comas 30.6 18T, with 30.6 engagement points, 18 teeth.
- Chain: YBN S20, 1/2x3/32”.
- Rear sprocket: Comas 15T Screw-on, Aluminum 7075-T6.
- Pedals: Plastic pedals (we recommend replacing them for some higher quality pedals).
- Bashring: Comas ultralight bashring, anodized black.


- Headset: Comas 1 1/8" internal , black.
- Stem: Comas 20º, 130 mm x 20º, 31.8 mm Oversized handlebar diameter, black with white Comas graphics.
- Grips: Comas foam 4 mm thickness.
- Handlebar: Comas Entry, 720 mm long, 105 mm rise, 31.8 mm Oversized handlebar diameter, black with white Comas graphics.


(1) Wheelbase: 920 mm
(2) Rear End: 327 mm
(3) Bottom Bracket Height: +55 mm.
(4) Head Angle: 72°.
-----------------------------------------------Geometrias en bicicletas de Trial

- 8.780 Kg, verified by TrialBikes.

Additional information:
The list of components may change. Any changes on the components will be communicated to the customer before delivery, ensuring the component replaces is of the same or higher quality than listed.

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

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