PRO HEADSET IS42/28.6 - IS52/40 INTEGRATED CABLE ROUTING Torque Wrenches The Shimano GRX ST-RX400 right

The Shimano GRX ST-RX400 right shifter is engineered for gravel riders who demand reliable braking with sufficient power reserves

Model: BL-M4100 / BR-MT410 (rear)

Primer 275 - 2020-2022

Saddle angle adjusts from -15° to +15°

PRO HEADSET IS42/28.6 - IS52/40 INTEGRATED CABLE ROUTING Torque Wrenches The Shimano GRX ST-RX400 rightThe PRO IS42 28. 6 IS52 40 headset combines precision engineering with modern cable management. Featuring integrated cable routing, this headset streamlines your bike's aesthetics while maintaining reliable performance across mixed terrain. Designed for compatibility with both 1 1 8" and 1 1 2" steerer tubes, it delivers smooth steering response and durable sealed bearings. The integrated cable routing keeps your dropper post and brake lines organised