This is the optional 48 Pitch 13 Tooth Steel Pinion Gear for the Axial Wraith Rock Racer, AXID9018. FEATURES: Constructed of hardened steel for long life YOU WILL RECEIVE: 48 Pitch 13 Tooth Steel Pinion Gear with Set Screw REQUIREMENTS: Fastening to motor shaft SPECIFICATIONS: Gear Pitch: 48 Number of Teeth: 13 jxs 07/26/11 ir/jxs &