Shimano Dura-Ace Di2 RD-R9250 12 Speed Rear Derailleur GRAVEL and an utter buzzkill with

and an utter buzzkill with a flat tire

Given that tire volume varies with rim width

achieves lighter and quicker shifting

Featuring a sintered metallic compound

Offering excellent cushioning and superior grip with a cross-hatch pattern

Shimano Dura-Ace Di2 RD-R9250 12 Speed Rear Derailleur GRAVEL and an utter buzzkill withThe Shimano Dura Ace Di2 RD R9250 12 Speed Rear Derailleur represents the pinnacle of electronic road shifting. Developed for WorldTour racing and engineered for uncompromising performance, the RD R9250 delivers Shimanos fastest, most precise rear shifting ever. Featuring a semi wireless Di2 design, integrated wireless connectivity and intelligent system management, it provides lightning fast gear changes under full load while maintaining the