Exotek Flite 48dp spur gears
Coming from Exotek and made for their slipper eliminator hubs are the Flite 48dp spur gears. Machined from high-quality POM material to ensure true roundness the extra interior machining does away with unnecessary weight for reduced rotating mass. The gears are meant to be much stiffer and truer than moulded nylon spur gears, they are available as 66T, 69T, 75T and 78T and they weigh between 2.5g and 4.6g each.
Source: Exotek [exotekracing.com]