SHIMANO's double-servo pantograph mechanism moves the rear derailleur to the optimal path. Guide pulleys optimize each shift while moving from front to back. Perfect tracking contributes to the most accurate SIS shifts.
Product model number: RDTX800SGSS Color: Silver Size: 14 x 13 x 8 cm Material: Aluminum Type: Cycling Batteries included or built in: No Gender Target: Unisex/Adult, Adult, MENS Style: Derailleurs - Mountain, Derailleurs, Shimano ?, Mountain Components, Shimano Product Size: 14 x 13 x 8 cm; 299 g
