Race Tech HP Springs have a high stiffness-to-mass ratio. In other words; the springs are light weight for their particular spring rate. This requires the finest materials and processing. Shot-peened and pre-set so they cannot sack out. All Race Tech HP Springs have the highest rate tolerances in the industry. These are the finest springs in the world-guaranteed.A stiffer shock spring will help you get through the whoops or just help handle that extra baggage on the rear.
Stock spring rate is 10.5 kg/mm
Spring color may vary due to specification requirement and availability.