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With improved ergonomics and thumb & index finger controls, Box Two Twin Lever Shifters provide smooth and accurate transitions from gear to gear. Up to four shifts on the throw helps ensure you can move up the cassette quickly while climbing. All Box Two shifters include a stainless steel shift cable.

• With improved ergonomics and thumb & index finger controls, Box Two Twin Lever Shifters provide smooth and accurate transitions from gear to gear. Up to four shifts on the throw helps ensure you can move up the cassette quickly while climbing. All Box Two shifters include a stainless steel shift cable.