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Fern Bicycles

ALLYGN M.U.D. Fork

ALLYGN M.U.D. Fork

Regular price $513.00 USD
Regular price Sale price $513.00 USD
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After almost four years of development we are super proud to finally present the Swiss Army Knife of all carbon forks. My goal was to design a carbon fork for frame builders like me, providing all the features and mounts you would need for building a fully integrated high end custom bicycle. The M.U.D. fork is a true multi purpose tool made for rough use and it can handle every situation, from serious gravel riding to heavy loaded bike packing.
We tested our design on bike races all over the world and also took it to the laboratories of Zedler and EFBE institutes in Germany, where it was tested with the hardest industry standards, successfully proofing it's strength.

The M.U.D. fork has all the mounts you always wished for on a carbon fork, mounts for front racks and anything cages, a light mount, internal brake hose and a super clean integrated fender mounting solution.
A very special feature is our unique design for a clean dynamo cable routing inside the fork leg, up to the headlight and back on the underside of the fork crown to the tail light. You can also run a cable up inside the fork steerer for stem mounted charging devices.
The fork has a super wide tire clearance, up to 700C x 55 mm or 650B X 64 mm tires, while maintaining the standard 395 mm axle-to-crown measurement, keeping the bike nice and compact without changing the normal front end geometry of most gravel bikes. 55 mm fork rake for additional toe overlap clearance when riding with big tires and fenders.
And we should not forget to mention, the slick and elegant design blends in perfectly with the slender looks of today's modern custom made metal bikes.

Literally, this fork has it all in one, a true M.ulti U.tility D.esign, just like a Swiss Army Knife!

Key Features and specifications:

  • Material: Carbon
  • Paint: Each Fork is hand painted by friend and fellow frame builder Jacek Orlowski. Base paint is charcoal / glimmer gray anthracite. Special rubber like soft touch urethane extreme matte clear coat. Custom colors on demand.
  • Maximum Tire Clearance: Up to 700c x 2.25" knobby tires, depending on tire. Tested with Schwalbe Racing Ralph tires. Up to 650B x 2.4", tested with Kenda Booster Pro
  • Fender Mounting: Circular fork crown cut out allows for up to 60mm wide fender installation. M6 under fork crown mount. M5 dropout mounts.
  • Rack Mounts: 3 x M5 fork leg mounts, 64mm spacing, max load 2 kg each eyelet - total 6 kg per side. M6 front fork crown rack mount
  • Dynamo Cable Routing: Internal in right fork leg, accepts two cables from hub to fork crown for additional devices. Cable routing inside steerer tube for stem mounted charging devices.
  • Taillight Routing: Dedicated under fork crown cable routing to the back of fork crown.
  • Brake Cable Routing: Internal hose
  • Light Mount: M6 front of forkcrown
  • Weight: 570 gr
  • Axle to Crown: 395mm
  • Rake: 55mm
  • Fork Crown Diameter: 57mm
  • Steerer Tube: 1 1/8" - 1.5", 400mm length
  • Fork Crown Race Diameter: 39.8mm
  • Through Axle: 12mm x 100mm, dropouts will accept 15 mm hubs with adapter sleeve.
  • Brake: Flatmount disc brake
  • Rotor Size: 140mm - 160mm
  • Testing: Tested successful in Germany at Zedler Institute according to Category 1  ISO 4210:2015 standards, rider bike system weight 100 kg.
    Successful enhanced testing at EFBE institute  according to EFBE TRI-TEST Gravel / Cross Category 2 EN 17406:2020, rider bike system weight of 135 kg.
    Successful special testing at EFBE for rack- and cage mounts, 7 kg each side, according to DIN EN ISO 11243:2024-01, 5.9.1.
  • What‘s inside the Box: Allygn M.U.D. Carbon Fork, 12mm through axle, steerer tube expander with top cap, 1x Ass Savers Mudder, 1x washer 25x1mm, 1x M6x14mm flat cap bolt, 8x M5x14mm bolt, 1x M6x14mm bolt, 1x rubber dynamo cable hole plug
  • Country of manufacture: Carbon fork and axle made in China. Painted in Poland. Expander made in Taiwan. Assembled in Germany. Ass Saver made in Sweden.

For even more detailed info please check out the product page Allygn.de and download the fork manual.

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German 19% VAT will be removed for all orders outside EU!

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