Velo Orange Cigne Stem - 31.8mm Clamp 90mm BlackVelo Orange Cigne Stem 31. 8mm Clamp 90mm Black. Velo Orange Cigne Stem gets its name from the French word for swan. The shape is inspired by the old gooseneck LD stems by Ibis and Cunningham but with a few accommodations for modern bike needs. 1 1 8" threadless and 31. 8mm handlebar clamp with a removable faceplate. With 145mm of vertical height from the base of the stem to the center of the clamp its pretty useful for getting your handlebars up high