Monarc's Gneiss Fork Uses a Reverse-Arch Design
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- Monarc's Gneiss fork uses a reverse-arch suspension design, moving the fork brace to the rear of the wheel instead of in front of it, which makes the fork shorter and stiffer than conventional designs.
- Manitou originally patented the reverse-arch fork concept, which appeared on high-end mountain bikes for years; Monarc's version arrived after that patent expired and the design became available to other builders.
- Monarc says the rearward arch delivers greater fore-aft rigidity, improved steering accuracy, reduced flex under braking, and a lighter overall fork.
- The Gneiss fork delivers 80 mm of suspension travel intended for trail riding, giving Monarc's Marker off-road e-bike a full-travel setup in an unconventional package.
- Moving the arch rearward also reduces mud, sticks, and trail debris getting trapped between the tire and fork brace—a practical advantage for off-road riders.
- Monarc developed the Gneiss fork entirely in-house, which the company frames as genuine engineering experimentation in an e-bike industry that more often changes colors and frame shapes than reimagine core components.
Why it matters: Monarc is the first builder to bring the decades-old reverse-arch fork—previously limited to Manitou-equipped mountain bikes—into the e-bike market with an in-house design, giving riders a stiffer, lighter fork with 80 mm of travel and better debris clearance. The move signals that engineering experimentation, not just cosmetic refreshes, is breaking into the e-bike category.
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