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ESE Carbon Company released the results of efficiency and range improvements testing on the company’s E2 carbon fiber rims.
In September 2022, engineers from ESE Carbon Company’s Jasper, GA, manufacturing facility performed vehicle testing to measure range improvement gained using E2 Carbon Fiber wheels versus stock (OEM) wheels.
The vehicle used for testing was a 2017 Tesla Model S Performance. This model was chosen specifically for its advanced performance and handling capabilities, tremendous torque (713 ft-lb / 967 N-m), and significant weight (5,997 pounds) compared to an average sedan.
Pirelli P Zero Tires measuring 245/45/XR19 were used for both the OEM and E2 carbon fiber wheels. The rim diameter of the OEM wheel was 19x8”; the E2 wheels were 19x8.5”. All tires were inflated to the manufacturer’s recommended pressure of 45 lbs.
Weather conditions were clear, roads were dry, and an average temperature of 80 degrees was recorded. Windy conditions were not present.
The Tesla’s Energy Storage System (ESS) was fully charged before each test using the recommended electric vehicle supply management (EVSE) and OEM Tesla charging cables and connectors.
The company’s test driver covered an identical 26-mile route four (4) times with OEM wheels. Following a cool-down period, the exact test was performed using ESE’s E2 carbon fiber wheels. The route was a mix of rural and residential streets and state highways.
The results showed an average of 316 Wh/mile with stock wheels, while the E2 carbon fiber wheels returned a value of 303 Wh/mile – a 4.1% improvement.

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