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 this road bike 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: tyre type: Clincher tyre size: 28 ASTM category: 1 weight: 1760 g. rim material: Aluminum rim material details: Aluminum rim height category: Low rim height: Front: 24,5 mm and rear: 27,5 mm rim width: 23 mm, ETRTO 17C tyre width: From 25 mm to 50 mm braking system: Caliper braking surface/braking options: Aluminum braking surface, turned front axle compatibility: QR rear axle compatibility: QR front wheel spokes: 18 (9 left + 9 right) rear wheel spokes:20 (10 left + 10 right) spokes material:Stainless steel spokes profile technology: Rounded, J-pull nipples: Aluminum front hub: Aluminum, Aluminum flanges rear hub: Aluminum, Aluminum flanges bearings: Industrial bearings system others: Aluminum Axle WEIGHT LIMIT: 109 kg (Cyclist) FWB version: HG11, CAMPY