M.U.D. Fork

After almost four years of development we are proud to finally present the Swiss Army Knife of carbon forks. This is a true multi purpose tool for rough use and can handle every situation, from serious gravel riding to bike touring or bikepacking.

This flatmount fork features all the mounts you always wished for on a carbon fork: anything cages, light mounting and clean and integrated fender mounting.

For the first time ever on a carbon fork we've managed to design a clean route for the hub dynamo cable inside the fork leg, up to the headlight, back to the back of the fork crown and onwards to the rear light cable. You can also run a cable up inside the fork steerer for stem mounted charging devices. The brake cable is also routed cleanly and internally.

Featuring super wide tire clearance: up to 700c x 55mm tires, while maintaining the standard 395mm axle-to-crown measurement.
The fork takes a 12mm through axle, but the dropouts will also accept 15mm through axle hubs, so no need to swap your existing front hub, just insert an adapter sleeve and you are ready to roll! 

Literally, this fork has it all in one, just like a Swiss Army Knife.

Coming from a transportation design background we were able to use the same tools and Class-A CAD surfacing technologies as would be used in today's advanced car design and engineering. Combined with our experience in building high end custom bicycles we wanted to create a fork which provides all the features you would expect from a modern adventure carbon fork but delivered in the most elegant package possible. Even though functionality was the main focus, we invested many hours to create a fluid and harmonious design with beautifully carved curves and perfectly shaped surfaces to blend in perfectly with the refined designs of our custom made bicycles.

The ALLYGN M.U.D. Flatmount Fork features an axle to crown height of 395mm, which is a common standard for many modern Cyclocross, Allroad and Gravel bikes. The rake is 55mm which results in a slightly shorter trail figure than usual, providing better handling especially when the bike is front loaded. These extra few millimeters of rake also help to minimize toe overlap, an important consideration when using high volume tires and fenders. The extra slim fork crown has a perfect circular cutout for the tire, not wasting a millimeter of space for extra wide tire clearance, which will fit up to 700c x 55mm, depending on the tire (Tested with 700c x 55mm Rene Herse Antelope tires). 

Our forks have been tested to the bicycle industry's highest standards at the Zedler–Institut für Fahrradtechnik und -Sicherheit GmbH and the EFBE Prüftechnik GmbH, both companies located in Germany.
We successfully tested according to Category1 ISO 4210:2015 standards, rider bike system weight 100kg, at the Zedler Institute.
Furthermore we successfully passed enhanced testing at EFBE institute according to EFBE TRI-TEST Gravel / Cross Category 2 EN 17406:2020, with a rider bike system weight of 135KG. We passed a special testing at EFBE for the rack- and cage mounts, with 7kg each side, according to DIN EN ISO 11243:2024-01, 5.9.1.
We recently passed the TÜV Rheinland executed in Shanghai with ISO 4210-2:2023 Clause 4.9 and included additional testing procedures which all passed fine.
We also thoroughly self test our fork in the harshest real world conditions you could imagine, such as the Race Around Rwanda or the Atlas Mountain Race, Hellenic Mountain Race, PBP, Paris-Brest-Paris and so many more. Official test riders are Stefan Haehnel, Bengt Stiller, Paul Evans and Kristin Heil.

For our custom made bicycles we consider a hub dynamo and integrated lighting an absolute necessity. We designed a dedicated cable intake close to the right fork leg dropout, which will accept up to two cables, so you can separately wire your headlight and a USB charging device. Cables are routed freely inside the right fork leg, up to the underside of the fork crown where the cable exit port is located. You can also route a cable all the way up and into the fork steerer in order to connect charging devices mounted on top of your stem. 

The hub dynamo cable runs inside the right fork leg all the way up to the underside of the fork crown. You will find two grooves in the underside of the fork crown which secure and guide the cables going to the front light and back again to the rear of the fork crown for connecting the rear light cable. The right cable channel is a bit wider, enabling you to run a second cable to connect to a USB charger or other additional devices such as a second headlight etc. After the cable routing is completed, just fasten the washer with the M6 Torx screw provided and everything will be fixed, neat and tidy underneath the fork crown.

Our fork features various possibilities for attaching porteur racks, lowrider racks, bottle cages or anything cages. Three M5 eyelets with 64mm spacing on each fork leg provide plenty of options for rack mounting with two M5 eyelets at the dropouts for rack and fender mounting.

The M.U.D. fork has a complete circular fork crown cutout and therefore allows installation of up to 60mm wide fenders not wasting a millimetre of space for tire and fender clearance. For clean and simple fender mounting you can use the under fork crown M6 bolt, which also holds the light cables in place. Just stack some spacers on top of the metal washer which secures the cables and adjust the fender to tire distance, which is usually between 15-25mm. Then use loctite 243 and fix everything securely with the M6 torx bolt (longer M6 bolts might be needed). Next to the fork drop outs there are two M5 eyelets for attaching the fender stays. 

Super strong M6 mount in the front of the fork crown for headlight or front rack mounting. ALLYGN front racks can be found here .

Internal brake cable routing helps to protect the brake hose and provides a clean and refined look.

The Allygn M.U.D. Flatmount Fork features a 12mm through axle interface which is the standard on most modern gravel and all road bikes. The fork dropouts will also accept 15mm hubs which can simply be used with an adapter sleeve, so there is no need to swap your existing hubs.
The fork has a flatmount brake interface, but adapters can be used to accommodate ISO or postmount fit brakes.