Racing Beat Super Lightweight Rotor Assembly 1986-1992 Mazda RX-7 Non-Turbo

Racing Beat Super Lightweight Rotor Assembly 1986-1992 Mazda RX-7 Non-Turbo
Racing Beat

Item# 10007

MSRP: $ 2,768.00

$ 2,479.00

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Note: Please contact for availability before purchasing. Many Racing Beat items have been on backorder lately.

Our Super Lightweight Rotor Assemblies for 1986-92 Non Turbo applications are machined lightened using a CNC (computer numerically controlled) mill. These Non-Turbo rotors are based on the stock 1989-92 rotors (9.7:1 compression ratio). The initial weight of each rotor is approximately 9.7 pounds, and upon completion of the machining process the weight is reduced to approximately 8.7 pounds.

Years of experience have allowed our engineers to refine the lightening process to optimize the amount of material that is removed. The lightening process removes material from both the external sides of each rotor and the internal ribbing and bearing support areas.

The Racing Beat machining process involves the installation of a snap ring between the rotor gear and the basic rotor to prevent the rotor gear from working away from the basic rotor at higher RPM. The ring gear is removed using a hydraulic press, and an indexing groove is cut into both the rotor and the ring gear. A snap-ring is placed into the groove on the ring gear, and the assembly is placed into the rotor. Once the snap-ring expands into the groove on the rotor, the ring gear is permanently seated onto the rotor.

After completion of the machining process, we fully balance each pair of rotors with matching front and rear counterweights to provide an assembly capable of high RPM operation. As seen in the photo below, additional material is removed from the lower portion of each counterweight.

Each assembly includes two (2) super lightweight rotors, and one (1) front, and one (1) rear counterweight.


Year Make Model Trim
1986 - 1992 Mazda RX-7 Non-Turbo

View All Mazda RX-7 Rotors

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