Brand: Hot Racing
Part Number: ERVT50M01
Hot Racing E Revo 2.0/X-Maxx/XO-1 Steel Mod 1 Steel Spur Gear (50T) (part #ERVT50M01), made for the Traxxas X-Maxx. Spur size sets the final drive ratio, and a steel or hard-anodized spur stands up to brushless power much better than stock.