Changes in lighting conditions come fast on the 1.3-mile circuit, yet there was never a lapse in clarity with these aviator-style shades. The Vision Drive Polarized XTR lenses—with four layers, ...

The outside of the air spring can suffer from abrasion if it rubs against any other suspension part because of misalignment or other parts out of their normal positions, like a broken shock. Too ...

Air springs are to suspension systems what vacuum-secondary carbs are to engines. Catch a glimpse of vacuum-secondaries under the hood of a hot rod and you'll automatically assume the motor's a turd.

Air springs are such simple and reliable components; short of a rupture, hardly anything ever goes wrong with them, therefore they are easy to overlook. But looks can be a bit deceiving. It they ...

When designing helical or compression springs, you’ll confront several challenges and trade-offs, especially when it comes to getting the best possible performance from the wire. You will want to use ...

Every modification in the custom car industry goes through a maturing process. The technology is refined, heavily critiqued, and maybe if the modification is lucky, the public will approve and it gets ...

• Stock springs are generally intended for prototyping, and their use in production can compromise designs. • Experts recommend discussing specific design requirements with a spring manufacturer. The ...