1 Mod 23T Spur Gear 45# Steel Pinion Gear Thickness 10mm Outer Dia 25mm x 1Pcs: Amazon.com: Industrial & Scientific
Amazon.com: Hobbypark Steel Metal Mod 0.6 Module Pinion Gear Set 3.175mm Motor Gears 17T 21T 26T 29T 11189 11176 11181 11119 for RC Car Redcat HSP Exceed (4-Pack) : Toys & Games