GRX ST-RX600 BR-RX400 Disc Brake Set Style:Rear 11 Spd. Length: 305 mm (12")

Length: 305 mm (12")

25 mm in diameter and features a multifilament nylon core and a titanium coating for extra power and durability

and match days

Ultra low-profile design

-Compatible with cassettes up to 34 teeth-Wide link design offers increased stiffness for a smooth shifting performance and long durability-Compatible with all Sora R3000 shifters

GRX ST-RX600 BR-RX400 Disc Brake Set Style:Rear 11 Spd. Length: 305 mm (12")Instead of telling gravel riders what they needed, Shimano asked them what they wanted for their off road adventures. The result are the Shimano GRX components which represent the first series especially developed for riding on rough roads and through gravel. The Shimano GRX sets itself apart from the rest of the component world with its gravel specific ergonomics, optimized gearing options, rugged reliability as well as a quiet and stable drivetrain.