STI stands for "Shimano Total Integration," and refers to Shimano's preference for combining gear and brake levers. The Shimano STI levers feature ergonomically positioned thumb and trigger levers to provide quick-action shifting for both front and rear derailleurs .An optical gear displays provide gear position verification at a glance. The Adjustable reach V brake lever allows adaptation to a wide variety of hand sizes. Compatible with all Shimano 7-speed drivetrains.
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