Comas Zero Factory 20"

This bike is available in 3 geometries, all feature a 19" rear and 20" front wheel:

• Wheelbase: 920mm / 970mm / 1008mm
• Chainstays: 328mm / 350mm / 350mm
• BB rise: 55mm / 85mm / 85mm
• Head tube angle: 72*

Frame and fork:

• 20″ 6061-T6 aluminium frame with one-piece dropouts, Post-mount
• 20″ 1-1/8″ aluminium fork, Post-mount disc mount

Steering:

• One-piece 3D forged aluminium stem, 150 mm × 20°
• 5 mm steering spacer, CNC-machined aluminium
• Semi-integrated headset 1-1/8″ with aluminium cups
• 7075-T6 aluminium handlebar 720 mm × 31.8 mm, 7° up, 9° back, 115 mm rise
• Extra-thin medium-density foam grips, 4 mm thick

Drivetrain:

• 9/16″ aluminium cage pedals
• Ultralight bashplate, 7075-T6 aluminium
• ISIS bottom bracket 1.37″×24 T, 68 mm shell, 123 mm axle
• Forged aluminium crankset for ISIS, 158 mm length, 33 mm offset
• 18 T freewheel with 108 engagement points and 9 pawls
• YBN S20 single-speed 1/2″×3/32″ chain
• 12 T CNC-machined 7075-T6 aluminium sprocket

Wheels:

• Front wheel: COMAS 20″ disc, 100 mm width, Shimano HG system
• Rear wheel: COMAS 19″ disc, 116 mm width, Shimano HG system
• Tyres: Monty Pro Race 20″×2.00 front, 19″×2.60 rear
• Tubes: Ultra-light 20″×1.75, 0.8 mm thickness

Brakes:

• Hope Tech 4
• Comas Race 160mm rotors