Description
Elevate your riding experience with the Surly Moonlander Fork – the ultimate upgrade for fat-tire, expedition, and adventure bicycles. Crafted from premium 4130 Chromoly steel with Natch tubing, this 24″ steel fork combines durability, performance, and rugged style for demanding riders. Its TIG-welded construction ensures a strong, lightweight frame, while the ED-coat finish provides enhanced corrosion resistance for long-lasting use in diverse conditions.
Performance & Engineering:
Designed specifically for fat-bike enthusiasts, the Surly Moonlander Fork features a 12 x 197mm thru-axle system that offers maximal stability and precise steering. Its generous 24 x 6.25-inch tire clearance allows for oversized tires, enhancing traction and comfort on rough terrains. The 50mm offset delivers improved handling suited for off-road explorations, while the 203mm rotor compatibility ensures reliable stopping power with disc brake setups.
Components & Technology:
Built with versatile mounting options, this fork includes multiple bottle mounts and rack mounts, making it ideal for bikepacking, touring, or daily commuting. The straight 1-1/8″ steerer tube maintains compatibility with a wide range of bike frames and accessories. The fork’s 30 crown race and 28.6mm S.H.I.S. stem clamp diameter facilitate secure and stable attachment to your bike’s frame, ensuring confidence in high-speed descents or heavy cargo loads.
Style & Use Case:
Aesthetically refined in Lunar Dust Gray, this fork complements both modern and vintage fat-bike builds. Its durable steel construction and sleek design make it perfect for cyclists seeking reliability and style on multi-day adventures, trail rides, or winter Fatbiking excursions. Built to withstand the rigors of diverse terrains, the Moonlander Fork is your reliable partner for the ultimate fat-tire riding experience.
Innovative Features:
The Surly Moonlander Fork stands out with its optimized engineering for fat tires, high compatibility with disc brakes up to 203mm rotor size, and multiple cargo mounting options – ideal for bikepacking setups that demand durability, versatility, and performance.
Upgrade your fat bike today with the Surly Moonlander Fork – engineered for adventure, built to last, and designed to inspire confidence on every ride.
- Durable 4130 Chromoly steel construction with Natch tubing and double-butted tapered blades ensures maximum strength, flexibility, and longevity for off-road and adventure riding.
- Designed with a 12x197mm thru-axle and IS Disc Brake mount, providing enhanced stability and precise braking performance for mountain biking, fat tire, and cargo use cases.
- Features generous tire clearance up to 24 x 6.25 inches, making it ideal for fat bikes, gravel adventures, and custom builds that require versatile, wide-tire compatibility.
- Equipped with a straight 1-1/8″ steerer tube and a sleek Lunar Dust Gray finish, combining durability with a modern, rugged style perfect for custom bike builds and touring setups.
- Innovative engineering includes TIG-welded, ED-coated surface for corrosion resistance and a lightweight overall weight of 1862 grams, offering optimal performance without sacrificing durability or style.
| Steerer Type | Straight |
| Max Rotor Size (Fork) | 203 |
| Brake Mount (Fork) | IS Disc Brake 160 |
| Brake Type | Disc |
| Offset | 50 |
| Material | Steel |
| Material | CroMoly |
| Maximum Tire Clearance (Fork) | 24 x 6.25 |
| Axle to Crown Length | 460 |
| Front Axle Type | 12mm Thru-axle |
| Front Axle | 12mm Thru x 197mm |
| Front Hub Spacing (mm) | 197 |
| S.H.I.S. Stem Clamp Diameter | 28.6 |
| Color | Lunar Dust Gray |
| Crown Race | 30 |
| Weight | 1862 |
| Wheel Size | 24″ |
| Defined Color | Gray |
| Steerer Tube Length (mm) | 320 |






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