Material: 6061T651 SCREW: 6AL_4V Titanium/ SUS 304 Production method: Full Set CNC Machined Working WEIGHT: 52 g ————————————————————— At the request of riders and dealers, restart production program. More excellent material and processing than before. Durable and solid. Matching angles for Front Derailleur of Shimano and Sram. Full set CNC Machined and fine laser engraving.