Arrowmax "SL" Molded Composite 64P Pinion Gears feature an anti-slip golden-anodized aluminium hub combined with high strength anti-wear composite materials to create an incredibly lightweight pinion gear that will improve overall drivetrain efficiency, throttle feel and power. The gears have been thoroughly track-tested ensure the pinions will withstand the abuse of both on-road and off-road and provide racers with an option optimized for spec class racing. 64 pitch gears are available in 34T to 70T options.
This product was added to our catalog on March 5, 2019
Also they are thinner than a standard spur. No problem with slow classes but I probably wouldn't use with mod...
The nicest thing about these is that the mesh to your plastic spur makes the car SILENT! Also possibly the lightest you can get for that slight edge!
One thing to be careful of, I got a pinion that was larger and very (too) close to the motor mount screws and my driver nicked a couple of the teeth on this pinion slightly because it's soft plastic... Still works fine but something to be careful of.