Clean K1.2 Carbon 20" Frame

Clean K1.2 Carbon 20" Frame

Description and materials
- Clean K1.2 20” carbon frame, the evolution of the legendary Clean K1 20” frame, designed and improved in Spain by Clean.
- This is the frame of 2019 UCI Trials World Champion Dominik Oswald’s bike, as well as the one ridden by Clean Trials team riders Abel Mustieles and Benito Ros.
- New bashplate mounts, now internally reinforced to remove the main weak point of its predecessor, the Clean K1 20” frame.
- New dropouts spaced at 120mm, compatible with traditional and through-axle rear hubs by exchanging Clean’s hub inserts, available here.
- New graphics, with the outer layer featuring a 12K carbon finish.
- Made of high-modulus, ultralight carbon fibre: frame weighs just 995g!
- Features a 120mm-long tapered headtube, for 1 1/8” – 1,5” tapered headsets.
- Twin seat-tube design, shaped like a triangle to increase strength and stiffness.
- The Post Mount disc brake mount is integrated onto the left dropout.
- The sprung chain tensioner mount is integrated onto the right dropout.

Includes
- Two pairs of dropout inserts, should you prefer to use a through-axle or a standard hub:
· 1x Pair of dropout inserts for a 12mm through axle.
- Does not include a headset, basplate, chain tensioner nor any other accessories, available separately at our website.

The 7 Compatibility Keys
Below you can find the main details you need to consider when installing different components on this frame:
- 1) Headset. Since the headtube on this frame is tapered, with 1 1/8” top and 1,5” bottom diameters, it’s compatible with 1 1/8” – 1,5” tapered forks. If you’d like to use a standard 1 1/8” diameter fork, you can install an adaptor for the bottom cup, as in the one supplied with Clean’s 1 1/8” – 1,5” tapered headset, available on our catalogue.
- 2) Bashplate. Compatible with the 2-piece Clean Light, Jitsie, Bonz and those bashplates with different dimensions the following dimensions:
· Distance between front and rear bolts: 39-40mm
· Side distance between bolts: 43mm.
- 3) Bottom Bracket. A Press Fit AS30 bottom bracket must be used, like Clean’s X2 crankset.
- 4) Rear Brake. This frame has Post Mount rear disc brake mounts, so be sure to use a rear brake of that type. Post Mount brake calipers sit onto the brake mounts, instead of sideways (as is the case on IS calipers).
- 5) Chain tensioner. This frame requires a sprung chain tensioner, so other additional tensioners aren’t needed. It’s compatible with chain tensioners like Clean’s X2, Clean X2 Pro, Crewkerz and those with identical dimensions.
- 6) Rear hub. This frame has rear dropout spacing of 120mm, and is designed to fit:
· A through-axle rear hub, like Clean’s X3 rear hub, by installing Clean’s through-axle inserts.
· A standard rear hub, by installing Clean’s standard hub inserts.
Also, since this frame only has disc brake mounts, the rear hub must feature disc brake mounts too.
- 7) Fork. The steerer tube on your fork must be long enough so that at least 2mm of it remain above the top bolt of your stem’s steerer tube clamp.
To ensure this, you must add the length of the headtube (120mm for this frame), plus the cups bits that sit outside the headtube, plus the headset spacers (if any) and/or dust cover sitting under the stem, plus the length of your stem’s steerer tube clamp. Once you’ve done this, you’ll be ready to know if your fork is long enough so that at least 2mm of it remain above the top bolt of your stem’s steerer tube clamp.

Geometry (measured with a 370mm x 40mm fork)
- Space between dropouts: 120mm
- Head tube length: 120mm, 1 1/8” – 1,5” tapered
- Wheelbase: 1005mm
- Chainstay Length: 350mm
- BB Rise: +87mm
- Head Angle: 72º

Finishes
- 12K carbon finish, with Clean K1.2 white and red graphics.

Weight
- 995g

Additional Information
This frame comes with a 6-month warranty covering manufacturing or material defects. Any damage caused by inadequate use will not be covered under warranty.
If you have any doubts regarding this frame, don’t hesitate to ask.