Deragliatore posteriore wireless Shimano Deore XT RD-M8250-GS Di2 - gabbia media 12 velocità
Di2 technology results in precise and clean wireless shifting. Rear Der/Shifter Compatibility Shimano Mountain Di2. Rear Derailleur Mount Type Shimano Rear Direct Mount. Pinpoint ultra-fast shifting and a no-sacrifice 500% gear range.