JConcepts brand JConcepts Silent Speed 48P 80T Machined Spur Gear for the TLR22, 22-T and 22SCT Vehicles. FEATURES: Precision machined from composite plastic for durable and concentric design Machined, recessed dots on the outer edge indicate size when installed in slipper assembly for easy identification Detailed machining provides a pattern vented area and serves to secure slipper pad on both sides for more consistent slipper performance YOU WILL RECEIVE: JConcepts Silent Speed 48P 80T Machined Spur Gear SPECS: Pitch: 48 Number of Teeth: 80 Thickness: 0.16 (4.2mm) measured at outer edge Diameter: 1.47 (37.4mm) jxs 10/30/12 ir/jxs