Castelli Fast Feet 3 Socks S3-Cat-SinterBrakePads Size: 140 x 90 x

Size: 140 x 90 x 90mm

The R5 Nylon composite outsole is supple and comfortable even in the long haul but without compromising pedalling efficiency

The control app can be used to display and change grades when you’re riding

12-speed SPROCKET SRAM XG-1251

Castelli Fast Feet 3 Socks S3-Cat-SinterBrakePads Size: 140 x 90 xFor road racing or when you can't wear a Fast Feet TT Shoecover, this sock saves watts. Castelli's Fast Feet project for riding in warm conditions The foot portion is based on the Castelli Rosso Corsa Sock for in shoe comfort Polyurethane grip strip at top to keep sock in place Leg portion constructed with engineered grooved Lycra to help detach airflow TECHNICAL FEATURES Insulation 1 5 Waterproofness 1 5 Windproofness 1 5 Breathability 4 5 Lightness