This brand new sprocket from Fedetal takes its inspiration from the famous Mercedes AMG Aero car wheel pattern. This standard version has a 5 pronged design with a 3D machined surface which is 6.35mm in the middle and curves downwards to 4.4mm before returning to 6.35mm at the edge giving it a unique look. Spec: - Available in 25t or 28t in both silver or black -Compatible with 19mm, 22mm and 24mm cranks ###section### Product Specs TYPE: Bolt On MATERIAL: Alloy WEIGHT: TBC