同步傾仰機構，椅背和坐墊傾仰比例為2:1，符合人體工學，最大傾仰角度24度，氣壓桿與剎車桿同一把手操作，4段煞車，具安全回彈功能。

Synchronized mechanism, backrest and seat tilt at a 2:1 ratio, ergonomic design, maximum tilt angle is 24°, one lever for both gas height adjustment and locking function, 4 locking positions. Return-preventing system for backrest.