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The Shimano GRX ST-RX400 dual control lever, in terms of shifting performance, offers the GRX STI levers with 2x10 speeds at the same high level as Shimano’s top-tier road bike shifters. In contrast, braking efficiency is enhanced by the brake lever’s pivot, which is positioned 18 mm higher than usual. To meet the rider’s individual needs, the hydraulic brake lever also provides reach adjustment.
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The Shimano GRX ST-RX400 dual control lever set matches the shifting performance of Shimano's top-level road bike shifters with its GRX STI 2x10 speed levers. In contrast, braking efficiency is optimized by the brake lever pivot, which is positioned 18 mm higher than usual. To meet the rider's individual needs, the hydraulic brake lever also offers reach adjustment.