MUGEN MRX5 24T 7075 Pulley for Belt-Drive Tuning - AM-MRX5-H0251K by Arrowmax  [AM-MRX5-H0251K]

Design and function

The Arrowmax AM-MRX5-H0251K is a 24-tooth pulley built for MUGEN MRX5 belt-drive systems, CNC-machined from 7075 T6 aluminium and finished with a hard coating to increase surface wear resistance. The component is intended for drivetrain tuning where lower rotating mass and reliable belt engagement matter.

The pulley includes side holes to shed debris created by friction during running, a practical feature for track-side upkeep. As an aftermarket spare it focuses on longevity and consistent operation rather than changing gear ratios.

Installation notes: confirm correct pulley alignment on the shaft, set belt tension to values used in your MRX5 setup, and torque set screws or fasteners to the chassis makers recommendations. Inspect the belt and mating pinion/spur surfaces regularly to preserve predictable drivetrain behaviour.