Optional spur gear for 3-Pad Slipper Clutch. Precision-molded slipper clutch spur gear 78T 48P comprises of XRAY's exclusive key mixture of composite product, allowing the unit become robust sufficient to manage superior brushless devices. The spur gear is built to demonstrably have the best priced feasible fat while staying strong and light. Each gear has a stamped enamel amount for easy recognition.