With a low-profile Flat Mount design, the SHIMANO GRX BR-RX400 hydraulic disc brakes provide greater control for mixed terrain riding.
With a low-profile Flat Mount design, the SHIMANO GRX BR-RX400 hydraulic disc brakes provide greater control for mixed terrain riding.
BENEFIT
Wider rim for comfort and reliability
FEATURE
Greater comfort and reliability
TECHNOLOGY
17C wide-profile rim
TECHNOLOGY
Improved drive rigidity
BENEFIT
Easy maintenance
FEATURE
High-quality sealing
TECHNOLOGY
Cup & cone bearings