Coil Spring leads the way in the design and manufature of advanced progressive springs with both variable pitch and tapered wire forms.Which made in Australia and with life time warranty.

Most coil springs is designed that the first three laps are 19mm and last four laps are 21mm. And the gap between two laps has been adjusted.To ensure the comfort of normal running,the gap between first three laps is much smaller. The gap between last four laps is bigger, which is designed to keep more stable and better support force when encounters accelerated speed and drastic jolt.