Frame and Fork

Frame:

Clean K1 20" 2026, carbon fiber optimized for trials.

Fork:

Clean K1 Carbon 20", tapered design (1 1/8" - 1.5"), carbon fiber construction, compatible with HS and disc brakes.

Wheels Front hub: Clean X3, 28 spokes, 12 mm thru-axle, 100 mm width.

Rear hub: Clean E.Series freewheel hub, 32 spokes, 12 mm thru-axle, 120 mm width, compatible with Shimano HG cassettes.

Front rim: Clean Pro 20", 35 mm width, lightweight single-wall "H" design.

Rear rim: Clean Pro 19", 47 mm width, lightweight single-wall "H" design.

Tires: Clean Koala Trial 20" – front (2.00) and rear (2.6).

Brakes Brake system: Disc: Hope 4.5 EVO / HS: Clean 2026. New lever and piston.

Mounts: Clean. Drivetrain

Cranks and bottom bracket: Clean BB30, 30 mm axle (Press-Fit BB30). 157 mm cranks, CNC-machined, black anodized.

Front sprocket: Clean 18T chainring, wide-narrow design, black anodized 7075 T6 aluminum. Pedals: Clean Single-cage 7075-T6, black anodized.

Steering and Cockpit Handlebar: Clean Carbon 107 (new color).

Stem: Clean Pro 20º Super Light 155 mm, with removable top cap.

Grips: Black handlebar tape.

Headset: Clean integrated.

Geometry

Wheelbase: 1010 mm.

Rear length: 350 mm.

Bottom bracket rise: +87 mm.

Head tube angle: 72°.

Finishes Available colors: Gloss black "raw finish" with black graphics.