Reverse Gearbox - Flange to Flange — Elite Racing Transmissions
Amazon.com: Mophorn Go Kart Forward Reverse Gear Box 10T #40/41 12T #35 Go Karts Accessories TAV2 30 40 41 For 2HP-13HP Engine, Transmission Local Honor, 3 Shift Modes, ONLY Works with 30 Series Torque Converter : Automotive
VEVORbrand Go Kart Forward Reverse Gear box Fits 2HP - 14HP Engine 41P 10T or 12T TAV30 - Walmart.com
BENTISM Go Kart Forward Reverse Gear box for 2HP - 7HP Engine 40/41 10T or 12T TAV30 - Walmart.com
Vigilante Reverse Box suitable for bike engines
Home made reverse box - YouTube
Go Kart Forward Reverse Gear box for 2HP - 7HP Engine 40/41 10T or 12T TAV30 | VEVOR US