固定销具有快速释放按钮，可快速拆卸帆，同时允许滑车留在桅杆上。
Harken 32 mm C Battcar System
Favored by skippers and crew, Harken Battcar systems let you raise, douse, and reef the main instantly from the cockpit, even when close reaching in a big breeze. Battcar systems outperform in-mast or in-boom furling, cost far less, and sails don’t need to be recut. Typical boat size: Monohulls 18.3 - 27 m (60 - 90'); mainsail area under 180 m² (1940 ft²). Multihulls 15.2 - 21 m (50 - 70'); mainsail area under 140 m² (1510 ft²).
专利的钢丝固定夹可固定滚珠，使滑车易于装载和维护。复合材料角部保持器可在滑车离开轨道时帮助固定滚珠轴承。作为一种经济实惠的选择，CB+ 滑车可改装为在 Harken 非CB轨道上运行。
通过松开带螺栓销的端止档并将滑车滑出轨道，即可轻松将其从轨道上移除。