Clean K1 26" bike

The Clean K1 26″ 2024 is a competition trials bike with a fully carbon fibre frame optimised for trials, a tapered Clean K1 carbon fork with HS brake mount, Clean X3 and E.Series wheels, Clean 2025 brake system and precision geometry for responsive handling.

Frame and fork:

• Clean K1 26″ 2024 carbon fibre frame
• Clean K1 carbon 26″ tapered fork (1 1/8″–1 ½″), HS brake only

Geometry:

• Wheelbase: 1090 mm
• Chainstay length: 380 mm
• BB height: +67 mm
• Head angle: 72°

Drivetrain:

• BB30 Clean with 30 mm spindle, 165 mm CNC cranks, black anodised
• Clean 18T narrow-wide aluminium front sprocket
• Clean Mono-cage 7075-T6 pedals, black anodised
• KMC X9 chain
• Integrated Clean 7075 CNC tensioner, 10T jockey wheels
• Freewheel: 108.9 design, 18T Shimano HG; fixed sprocket: Clean 12T

Steering:

• Clean 107 Carbon handlebar
• Clean Pro Superlight stem, 145 mm × 24°
• Clean ultra-thin foam grips
• Clean integrated tapered headset

Wheels:

• Front hub: Clean X3, 28 spokes, 12 mm thru-axle, 100 mm width
• Rear hub: Clean E.Series freewheel, 32 spokes, 12 mm thru-axle, 120 mm width, Shimano HG compatible
• Front rim: Clean Pro 26″, 35 mm wide single-wall “H” design
• Rear rim: Clean Pro 26″, 40 mm wide single-wall “H” design
• Tyres: Clean Koala Trial 26″ – front 2.00″, rear 2.60″

Brakes:

• Clean 2025 brake system with Magura HS pistons
• Clean mounts