SRAM Rise 40 and v2 X.9 QR Rear Axle Kit ModelNumber=K4257 Ramped paddle shaped center knobs

Ramped paddle shaped center knobs roll efficiently and provide excellent traction for climbing and braking

Color Silver/Gray Half Link Chain No Drivetrain Speeds 11 Defined Color Silver Links (links) 120 Chain Connection Type Single Use Master Link Width 5

}SRAM Flat Mount Frame Disc Caliper Bracket Bolts 42mm Titanium

Compatible with Dura Ace 9000 Ultegra 6800 105 5800 Tiagra 4703 and Tiagra 4700

SRAM Rise 40 and v2 X.9 QR Rear Axle Kit ModelNumber=K4257 Ramped paddle shaped center knobsSRAM Rise 40 and v2 X. 9 QR Rear Axle Kit. Axle set includes axle and end caps. Does not convert a hub or wheel to a different axle diameter or length