Racing 6: The Racing 6 is an entry level wheel with a race-ready soul. The same Fulcrum quality and performance as the rest of the line with advanced characteristics such as a differentiated profile and Spoke Dynamic Balance technology. Fulcrum engineers have pushed the quality of these wheels even further incorporating an asymmetric rear rim that increases performance in terms of lateral and torsional rigidity as well as reactivity. The rim is 17C, as the new standard nowadays. Improved performance makes it an excellent choice for your next ride! Specification Suitable for clincher Axle: Q/R Caliper braking system Rim details: Aluminium, turned braking surface Rim height: 24.5mm (front) and 27.5mm (rear) Rim width: 23mm Inner rim width (channel): ETRTO 17C Tyre compatibility: 25-50mm Spokes: Front; 18 - (9 left - 9 right) Rear; 20 (20 left - 10 right) Spoke material & technology: stainless steel, rounded, J-pull Hubs: Front; Aluminium, aluminium flanges Rear; Aluminium, aluminium flanges Bearings: Industrial bearings system Axle: Aluminium Target weight: 1760g Weight limit: 109kg (cyclist) Nipples: Aluminium Technologies RDB™ Rim Dynamic Balance Anti-Rotation System™ F.I.C. Fulcrum Identification Card - 100% HANDMADE QUALITY Traceability - If you find a little label attached to any Fulcrum product, do not remove it. It will provide you a guarantee in case of an ascertained defectiveness of a production batch, and so the component needed or wheel will be traceable. Wide Rim Technology Differentiated Rim Height For more product information: https://prf.hn/click/camref:1100l3S37e/creativeref:1011l140395/destination:https%3A%2F%2Fwww.fulcrumwheels.com%2Fen%2Fwheels%2Froad-bike-wheels%2Fracing-6