Rear Hub | H_Ratchet DBL 48T | Disc Brake | 20 Hole | Black WTB Read the full aerodynamics report

Read the full aerodynamics report on the 50 Carbon Aero Disc

Steel Spline freehub body reinforcement insert provides excellent durability against cassette sprocket damage to the freehub often seen on standard alloy freehub bodies

The women’s version of these shorts is the closest Castelli comes to a sized-down version of the men’s shorts

29" | 25 Wide Int | 1647g

all in a lightweight package

Rear Hub | H_Ratchet DBL 48T | Disc Brake | 20 Hole | Black WTB Read the full aerodynamics reportTechnical Specification Type: Rear Hub Braking Interface: Disc Brake Spoke Holes: 20 Spoke Bend Type: T Head Carbon Colour: Black Total Weight: 217g (when fitted with freehub) Freehub not supplied with this product. Hub bearings from left (disc side) to right (non disc side): END 15267 LLU Bearing Stainless Steel Enduro END 15267 LLU Bearing Stainless Steel Enduro