The DragRace Concepts DR10 Aluminum Hardcoated Idler Gear is a direct replacement upgrade for the plastic 31 tooth idler gear in the Associated DR10. The idler gear will handle the lower turn motors that the factory plastic idler gear can't while eliminating pre-mature wear found when mixing aluminum top shaft gears with hardened steel idler gears.
Note: This list may not be 100% accurate or up to date, and is meant to be used as a guideline for compatibility.