For teams and tuners concentrating on drivetrain efficiency, the 3Racing Cactus 2WD Aluminum Idler Gear provides a low-mass, stiff idler option. The 24-tooth profile is optimised for mid-motor gearlines to reduce lash and stabilise torque transfer.
The 3Racing CAC-311 is produced from high-grade aluminium with machining choices aimed at consistent tooth form and minimal runout. Tight dimensional control lowers friction hotspots and helps maintain predictable gear wear across race events.
Engineered to drop into the Cactus 2WD mid motor layout, the idler supports common tuning changes and allows quick swaps during setup sessions. Its design favours reliable mesh under high load while keeping adjustments straightforward for pit-side servicing.