GRX RD-RX400 10 Spd. XX1 Eagle AXS Durability with impressive power and

Durability with impressive power and amazing control

Road saddle for flexible riders who move laterally

Removable Heel Pad

Store up to 72 tennis balls and feed away

stronger retention

GRX RD-RX400 10 Spd. XX1 Eagle AXS Durability with impressive power andWith an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON OFF switch for the chain tensioner. FEATURES : Silent and uninterrupted rear shifting on rough terrain Adjustable chain stabilizer prevents chain slapping and drops SHIMANO SHADOW RD+ Smooth and reliable mixed surface shifting Switch