660g rigid fork engineered from Toray T800/T1000 carbon to maintain stock geometry on MTB and Monster Gravel frames designed for 130mm travel. Boost standard and 100% internal routing for technical precision and assembly reliability.
This rigid fork was engineered to convert MTB frames into Monster Gravel setups, or for building our AARNY monstercross frame, without altering the stock geometry. With a 490 mm axle-to-crown height, it serves as a direct replacement for a 130 mm travel suspension fork at the sag point. Built using Toray T1000 and T800 carbon fiber, it provides maximum structural rigidity under load while maintaining a weight of 660 grams.
Key Features
490 mm Height: Ensures geometry integrity on frames designed for 130 mm travel suspension forks.
Boost MTB Standard: 110x15 mm interface to eliminate lateral flex during high-torque maneuvers.
100% Internal Routing: Clean aesthetic and total protection for the brake hose against external elements.
Massive Tire Clearance: Supports tire widths up to 29" x 2.6" for technical terrain capability.
Mounting System: Replaceable CNC-machined aluminum thru-axle insert for long-term reliability.
Compatibility
The fork features a tapered steerer (56 mm crown) compatible with modern headset standards (1-1/2" to 1-1/8"). Braking performance requires 180 mm direct mount calipers, with compatibility up to 203 mm using the appropriate adapter. Designed exclusively for Boost hubs (110x15 mm).
Switching to a rigid fork requires precise measurement of your current setup's axle-to-crown length. An excessive delta will drastically alter the head tube angle and bike handling. Contact our technical team for assembly validation.
Technical Specifications
Product Name
AARNY Carbon Fork 490 mm
Brand
CYKL
Weight
660 g (± 15 g)
Activity
Cycling
Discipline
Monster Gravel, MTB, Allroad
Color
Matte Black
Material
Toray T1000 / T800 Carbon Fiber
Axle-to-Crown
490 mm
Rake (Offset)
45 mm
Thru-Axle
110 x 15 mm Boost
Steerer Tube
Tapered (56 mm Crown)
Max Tire Size
29" x 2.6"
Hose Routing
Internal only
Certification
Tested to EN 14781 standards
Run the tires you want
From 45 mm Gravel tires to 2.6" MTB sections, this fork eliminates compatibility barriers. Adapt your machine to the terrain: aerodynamics for high-speed tracks or maximum grip for technical trails. Generous clearance ensures smooth operation, even in severe mud conditions. No more compromises on your wheelset setup.
Engineered for a true Monstercross
A 490 mm axle-to-crown height is the technical key to converting an MTB frame without altering the front-end geometry. You maintain the original head tube angle and handling while benefiting from the sharp responsiveness of carbon. This is the centerpiece for riders seeking the precise balance between MTB obstacle clearance and Gravel efficiency.