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Shimano 105 12-speed shifting
24-inch wheels for easy handling and control
it's optimized for speed in road races
everything you need to get to the front
biodegradable formula that’s safe for rims and tyres
Shimano RD-R9250 Rear Derailleur power meter Shimano 105 12-speed shiftingThe Shimano RD R9250 Rear Derailleur sets the standard for precision shifting in Shimanos flagship Dura Ace 12 speed lineup. Compact and aerodynamic, it combines lightning fast electronic shifting with a sleek design that also integrates the charging port and wireless connectivity. Built for ultimate performance, it delivers smooth, reliable gear changes whether youre sprinting, climbing, or cruising. 12 speed Di2 performance: Ultra fast, precise, and