The lightest and most aerodynamic spoke available designed for the highest performance wheels. The aero section spoke is 2. 0 mm thick at the ends flattening out to a 0. 9 x 2. 3 mm bladed section in the middle to improve aerodynamics. Hubs can be laced as normal so no slotting of the spoke holes is required which can weaken a hub flange. The butting process adds strength through cold forging of the metal. Made from X5 stainless steel containing chrome for rust resistance and nickel for strength. The rolling of the nipple thread removes no metal from the spoke and preserves the grain of the material maximising strength. Finished in black using an electro-chemical treatment that is durable and does not weaken the spoke. Comes supplied with 12 mm DT aluminium nipples. Weight: 278 grams for 64 x 264 mm length spokes.