Clean K1 Carbon 20" 2026 Fork

Clean K1 Carbon 20" 2026 Fork

New 2026 version of the Clean K1 20" carbon fork, now featuring a Raw carbon finish with a glossy clear coat and updated, more discreet graphics.
It retains the geometry, materials and technical specifications of the previous version, with compatibility for both 12 mm thru-axle front hubs and traditional front hubs by changing the aluminium dropout inserts, available here.
This is the fork fitted as standard on the Clean K1 20" 2026 Trials Bike.

Description and Materials
- Clean K1 20" 2026 carbon fork, specifically designed for Trials Bikes and used by rider Borja Conejos.
- New 2026 graphics with a Raw carbon finish and glossy clear coat, revealing the outer carbon fibre structure and providing a cleaner, more discreet appearance.
- Retains the construction and technical specifications of the previous version, with compatibility for both thru-axle and traditional front hubs by simply changing the aluminium dropout inserts.
- Made from UD carbon fibre, combining light weight, strength and stiffness.
- High-modulus carbon monocoque construction.
- Features a tapered steerer tube, measuring 1 1/8" at the top and 1.5" at the bottom, for use with tapered headsets of these dimensions.
- The steerer tube is made from carbon fibre and Kevlar, and features an internal aluminium insert that eliminates the need to install a star nut to preload the headset.
- 180 mm long steerer tube, with a tapered base that eliminates the need for a separate lower crown race, allowing the headset bearing to rest directly on the fork.
- Features mounts for both HS rim brakes and Post Mount disc brakes.
- Integrated HS rim brake mounts on the rear of the fork legs, with 91 mm spacing.
- Integrated Post Mount disc brake mount for a 160 mm rotor.
- The dropouts are designed for use with a 12 mm thru-axle front hub.
- This fork comes fitted as standard on the Clean K1 20" 2026 Trials Bike.

Includes
- The fork is supplied with black aluminium dropout inserts for a 12 mm thru-axle front hub.
- The 12 mm front wheel thru-axle is not included.
- Inserts for traditional front hubs are not included and are available separately here.

Compatibility
- This fork features a tapered steerer tube, measuring 1 1/8" at the top and 1.5" at the bottom, so it is not directly compatible with frames featuring a standard 1 1/8" head tube. It must be used with a 1 1/8" – 1.5" tapered headset, or with a suitable adapter installed in the lower part of the frame's head tube to allow the use of this type of fork.

Dimensions

(1) Length: 370 mm.
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(2) Offset: +40 mm.
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(3) Steerer tube length: 180 mm.
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- HS brake mount spacing: 91 mm.

Finishes
- Raw carbon finish with a glossy clear coat and new Clean K1 2026 graphics.
- Black aluminium dropout inserts.

Weight
- 541 g (including the aluminium dropout inserts and with a 180 mm steerer tube).

Frequently Asked Questions