Comas Zero Factory 20″ Bike

Description

FRAME
20″ high-grade 6061-T6 aluminum frame with one-piece CNC-machined dropouts and post-mount disc compatibility for optimal stiffness and strength.

FORK
High-quality 1-1/8″ aluminum fork, post-mount disc-ready with integrated dropouts — lightweight yet rugged for high-impact use.

STEM
One-piece 3D-forged aluminum stem, 150mm length, 20º rise, seamless and weld-free for superior strength and aesthetics.

HEADSET
Semi-integrated 1-1/8″ headset with precision-treated aluminum cups for long-lasting performance and smooth steering.

HANDLEBAR
7075-T6 aluminum bar with dual wall thickness, 720mm width, 31.8mm clamp, 7º upsweep, 9º backsweep, 115mm rise — tuned for control and comfort.

SPACER
5mm CNC-machined aluminum steering spacer bushing for fine steering adjustment.

GRIPS
Extra-thin, 4mm medium-density foam grips for a close, reactive connection to your bars.

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Braking System

BRAKES
Premium Hope Tech 4 Trial Zone hydraulic disc brakes, featuring high-performance forged aluminum levers and calipers, for world-class stopping power and modulation in all conditions.

FRONT & REAR DISC ROTORS
160mm high-quality stainless steel rotors with exclusive surface texture and composition for consistent braking performance.

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Wheelset & Tires

FRONT WHEEL
COMAS 20″ disc brake wheel, W100 DEL hub, 32mm wide rim with factory rim stickers.

REAR WHEEL
COMAS 19″ disc brake wheel, W116 DEL hub, 48mm wide rim with factory rim stickers — optimized for grip and strength in aggressive maneuvers.

FRONT TIRE
20″ x 2.00 performance tire for agile front-end control.

REAR TIRE
19″ x 2.60 high-volume tire for traction and impact absorption on demanding terrain.

TUBES
Ultra-lightweight, high-quality 20″ x 1.75 inner tubes, 0.8mm thick for low rolling resistance and reduced rotational mass.

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Drivetrain

BOTTOM BRACKET
ISIS-type bottom bracket, 1.37″ x 24T threading, 68mm shell width, 123mm axle — offering maximum stiffness and crank engagement.

CRANKSET
158mm forged aluminum cranks, 33mm offset, built for ISIS system to ensure efficient power transfer.

FREEWHEEL
18T freewheel with 108 engagement points and 9 pawls — ultra-fast engagement for precise, explosive movement.

CHAIN
YBN S20 single-speed chain, 1/2″ x 3/32″ — reliable and efficient under pressure.

SPROCKET
12T sprocket CNC-machined from 7075-T6 aluminum, 12mm wide, with 1.37″ x 24T threading.

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Why Choose the Zero Factory?

• Top-of-the-line Hope Tech 4 brakes for elite-level stopping performance

• Factory-level wheels and Pro tires for maximum grip and reduced weight

• ISIS drivetrain and ultra-fast engagement for aggressive riding and competition

• Premium materials and geometry trusted by advanced and pro riders

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The Comas Zero Factory 20″ is competition-ready right out of the box — no compromises, no upgrades needed. It’s the pinnacle of trial bike engineering for riders who settle for nothing less than the best.

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Geometry 920mm

• Wheelbase: 920mm

• Chainstay Length: 327mm

• Head Angle: 72º

• Bottom Bracket Height: +55mm

• Offset: 40mm

• Head Tube Length: 370mm

• Rear Hub Spacing: 116mm

Geometry 970mm

• Wheelbase: 970mm

• Chainstay Length: 350mm

• Head Angle: 72º

• Bottom Bracket Height: +85mm

• Offset: 40mm

• Head Tube Length: 370mm

• Rear Hub Spacing: 116mm

Geometry 1008mm

• Wheelbase: 1008mm

• Chainstay Length: 350mm

• Head Angle: 72º

• Bottom Bracket Height: +85mm

• Offset: 40mm

• Head Tube Length: 370mm

• Rear Hub Spacing: 116mm

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FINISH
Neon yellow frame with black COMAS decals.