Our manufacturing and development process gives us and upper hand on delivering the best after-market wheels without hurting your wallet. Bringing you Low Pressure Cast, Light Weight Durability, High Polished Machine Lip, and Removable Rivets! At the ESR Wheel technology department, our engineers focus a lot on bringing you the best neck-breaking designs and performance technology. All of our wheels offer clearance for the most high performance brake upgrades and tire pressure sensor compatibility. They have been designed to optimize the stiffness-to-weight ratio while providing safety and performance when put to the test. The manufacturing process at ESR wheels requires each rim to simulate road condition stress test to test the functionality and the durability of each of the wheels. After a wheel has been injected with a gas-containing helium up to a specified pressure, the Helium Leak Tester uses Mass Spectrometry to measure leakage into the chamber and then determines where the leakage is, and whether is passes the threshold. This allows us to make sure that the wheels will be 100% light weight, and durable. ESR Wheels is dedicated to provide the utmost excellence in customer service and manufacturing the highest quality wheels. Our products are put through the highest standard in testing and quality control, bringing you the best of the best after-market wheels. We take pride in the details, so we are better able to uphold our promise on delivering the very best.