Awesomatix ST69-15 Progressive Spring Screw 15% x2

The Awesomatix ST69-15 Progressive Spring Screw delivers the precise tuning control serious touring car racers demand. This 15% progressive rate screw lets you fine tune your spring preload with repeatable accuracy, giving you the confidence to dial in your suspension setup exactly where you need it. Each package includes two screws so you can balance your setup front to back or keep a spare on hand for race day.

Built to Awesomatix's exacting manufacturing standards, these progressive spring screws thread smoothly and lock down securely without backing off during hard racing. The 15% rate gives you a noticeable but manageable adjustment range, perfect for adapting to changing track conditions or experimenting with different handling characteristics. Whether you're chasing that last tenth on a high grip carpet track or adapting to a slippery outdoor surface, these screws give you the adjustment authority you need.

Compatible with Awesomatix touring car chassis including the A800 series, these screws integrate seamlessly into your existing suspension geometry. The precision machining ensures consistent performance across multiple setups, so your notes from one track day translate accurately to the next. For racers who understand that championship-level performance comes from controlling every variable, the ST69-15 Progressive Spring Screw is an essential tuning component.