Pro Circuit的联动臂由钢坯铝数控加工而成，旨在加强初始联动曲线并降低底盘，使车辆更加稳定。这也将有助于消除最初的松散和打滚感。转弯和转弯能力也大大提高。尽管通过Pro Circuit对悬架进行重新调整会带来相当大的改进，但仅连杆臂就比库存设置有了重大改进。每个连杆臂包括所有必需的轴承和密封件。
适配车型
Yamaha YZ250F 2014-2018
Yamaha YZ250FX 2015-2018
Yamaha YZ450F 2010-2017
Yamaha YZ250F 2014-2018
Yamaha YZ250FX 2015-2018
Yamaha YZ450F 2010-2017
Pro Circuit's Linkage Arms are CNC-machined from billet aluminum and are designed to stiffen up the initial linkage curve and lower the chassis, making the bike much more stable. This will also help eliminate the initial loose and wallowy feel. Turning and cornering capabilities are greatly improved as well. Although having your suspension revalved by Pro Circuit would make a considerable improvement, the Linkage Arms alone provide a major improvement over the stock set-up. Each link arm includes all of the required bearings and seals.
