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Ready for adventure, the GRX400 gives you hesitation-free operation as you tackle rough roads, gravel and mud. It features convenient tool access for simple wheel replacement and installation.
Shimano has also made bleeding easy and clean thanks to its one way bleeding system, which prevents air from getting into the system. With a streamlined oil route throughout the system to prevent air bubbles from being captured, you'll enjoy more efficient maintenance when required.
Taking your braking set-up a step further, this caliper's piston uses Ice Tech technologies which avoid the negative impacts of long rides, especially on downhill journeys. Furthermore, its technology does this by using ceramic material to avoid heat transfer for constant stable braking, providing efficient stopping power without loss.
Click here to view the Shimano Brake Reference Guide.