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With an integrated chain stabilizer Shimano GRX RD-RX822 12-speed rear derailleurs feature an intergrated chain stablizer that delivers quieter shifting and more secure chain management in rough terrain
Color Black Rings 52/36 Number of Chainrings Double Crank Length (mm) 172
9 400mm Zero Offset Matte Black
CNC machined alloy
Forged from premium grade alloy the SuaveAir features an oversized piston shaft to ensure smooth and quiet operation
Promax Shifter Housing SP50 5mm Black 30m Quick Release Clamp With an integrated chain stabilizerouter casing for derailleur cables 1. 2mm, SP 50 with PE inner tube straight wires outer 5mm, 30m rolled in box TECH SPECS Housing Length 30m Housing Liner PTFE Primary Color Black Shift Housing Diameter 5mm
