YSS's new suspension units are high-performance products, which come from the Ecoline range, and were developed with optimum performance but also a sporting look in mind. Their biggest feature is the nitrogen reservoir they have, giving a smoother linear movement, greater precision and better cooling. Main Features: High-performance suspension Faster reaction Greater response Spring preload adjustment A progressive spring, which adapts automatically to any conditions A separate nitrogen reservoir for comfortable riding or demanding riding Every YSS product carries TUV certification.