Your car is made up of a myriad of interlocking and cooperating parts, each one serving a very specific purpose, with the ultimate goal of keeping your car on the road and rolling along. It's ...

Calling all Sportster riders; If you’re tired of being left battered and bruised from your OEM suspension, it’s time to upgrade to Progressive’s 412 series. Progressive Suspension is dominating the ...

The basic setup on our race cars can be further improved by the proper selection of shocks at the four corners. Once all of the basic handling parameters have been sorted out, the car is getting ...

Circle Track: When tuning for a specific track, what areas of the car are the biggest factors. Jeff Smith: It depends on how close we are on the setup when we get there. We generally have three areas ...