TRX 1 wheel style

The TRX 1 wheel style was introduced as part of BMW’s adoption of the Michelin TRX system, which utilized a unique metric sizing system rather than the conventional inch-based measurements for wheels. These wheels, primarily designed for BMW models like the E23, E24, E28, E32, and E34, typically measure 390 mm in diameter and feature a distinct multi-spoke design. This design was both aesthetic and functional, optimizing airflow to cool the brakes during high-performance driving while maintaining a sleek, period-correct look.

The TRX 1 wheels were designed to pair with Michelin’s TRX tires, which were considered innovative at the time. The system aimed to enhance the balance between handling, comfort, and stability at higher speeds, particularly on long-distance drives and demanding roads. The TRX system’s unique radial construction improved contact with the road, enhancing the vehicle’s cornering capabilities and overall grip. However, the metric sizing proved to be less popular over time, making replacement tires difficult to source, contributing to the eventual phasing out of this system.

From a design perspective, the TRX 1 wheels are iconic for their intricate spoke pattern, which not only looked sophisticated but also played a role in reducing the wheel’s weight while maintaining structural integrity. This was crucial for maintaining BMW’s reputation for dynamic performance, especially on models like the E24 6 Series and the E28 5 Series, both known for their blend of luxury and sports car characteristics.

Today, TRX 1 wheels are sought after by BMW collectors and restorers who are dedicated to preserving the original look and feel of these classic vehicles. Their rarity and association with a distinct period in BMW’s history make them highly prized. While modern replacements are available, enthusiasts who value authenticity often seek out these original TRX wheels to restore their cars to factory specifications, adding to their allure as collector’s items. The combination of BMW’s engineering prowess and Michelin’s tire technology in the TRX system represents a unique chapter in automotive design, where innovation in wheel and tire technology aimed to redefine the driving experience.