Both the brake lever & the shift lever Ergopower are made from alloy. The Athena controls employ Power-Shift technology, permitting up to 3 up-shifts at a time. There is a single down-shift. Ergonomic supports on the main body ensure absolute comfort & safety. The double curvature of the brake lever provides an effective grip in any situation. Technical Specifications for calliper brakes composite body carbon fibre/light alloy brake lever Power-Shift mechanism ergonomic brake lever with high fulcrum closer brake lever brake opening control integrated with the brake lever insert for large hands Vari-Cushion silicone hoods No-Bulge housing path minimum friction housings front derailleur micro-adjustment possibility multiple shifting Weight: 372g