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FSE G40/30X Aero Gravel Carbon Rims


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Product Description

Filament Spun Evolution, a next-generation carbon rim manufacturer, uses a precise and efficient computer-controlled manufacturing system to create rims that are stronger, stiffer, lighter, and less expensive than similar rims from other manufacturers. Traditional rim manufacturing methods are highly labor intensive, resulting in increased production costs and potential for defects which can greatly affect rim performance and longevity. Backed by over 5 years of research and development, FSE's proprietary manufacturing and quality control processes ensure consistent, near-perfect production over their entire impressive rim catalog. FSE's precisely-controlled production process evenly applies resin to each carbon strand to ensure a lightweight, void-free carbon cross-section. Beyond their own internal testing, FSE rims are UCI tested and approved for the highest levels of competition.

These exciting aero profile, gravel-specific carbon rims are designed to tackle urban jungles, rough backcountry, and everything in between. With an impressive 30mm overall width, the FSE G40/30X Aero Gravel is designed to fit just about any tire size between traditional 700c road and 29" mountain. The modern hookless sidewall and bead-lock rim bed is optimized for modern tubeless tires, allowing lower tire pressures and less worry of punctures and pinch flats. This rim's 40mm depth strikes a nice balance between stiffness and compliance for confident handling and all-day comfort for epic adventures. For most gravel applications, we recommend a tire between 35 and 40mm wide. For smoother roads, a tire as narrow as 30mm may be used. If rougher roads are on the horizon, tires up to 50mm in width may be used to allow lower pressure for even greater comfort and traction. 

Please note that FSE Gravel rims are designed for use with disc brakes, and are not compatible with rim brakes.

Custom Wheel Builds

FSE Gravel rims are designed for use with standard external spoke nipples. FSE rims do not include rim tape or tubeless valves; these must be purchased separately. 27mm wide tubeless tape and ~65mm long tubeless valves are recommended, 

Our professional wheel builders are happy to advise on the best possible combination of rims, hubs, and spokes for a cyclist's individual needs. Please contact us directly for custom wheel quotes.

Product Specifications

Weight~415 grams
External Width30.0 mm
Internal Width24.0 mm
Depth39.7 mm
ERD562 mm
Tire Compatibility700c (ISO 622), tubeless compatible
Recommended Tire Width30-50 mm
Materialcarbon fiber
Finish3K Matte
Brake Compatibilitydisc brake only

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