HPI 77042 R40 - Spur Gear 52 Tooth 0.8M 2ND Gear/2-Speed

HPI 77042 R40 - Spur Gear 52 Tooth 0.8M 2ND Gear/2-Speed

Genuine HPI Racing 52-tooth spur gear in 0.8M pitch, used as the second gear in the R40 2-speed transmission. A healthy second gear is essential for clean shifts and strong top-end pull.

Replace a worn gear with this factory part to keep your R40 shifting crisply and running at full speed.

• Genuine HPI Racing part #77042
• Spur gear, 52 tooth, 0.8M
• 2nd gear for 2-speed transmission
• Fits the HPI R40
• Direct-fit factory replacement