Cinelli Pista Alloy Track Stem. Features: Forged and machined 6061-T6 aluminum construction with 4-bolt removable faceplate Twin, opposed-direction steerer clamp bolts Matte black anodized with red embossed and painted logo on faceplate. Specifications: Bar Diameter: 31.8mm Steerer Diameter: 1-1/8" (28.6mm) Stem Angle: 65deg Material: Aluminum Color: Black Weight: 176g (120mm)