Here is a cool look at Honda’s RC factory racers MXA did way back in 1975. These bikes were super trick and interesting. Check out the case-reed bottom ends (the standard CRs were piston-port at this point), air shocks and whacky mixed knobby (half hard terrain, half soft terrain) patterns on the works tires. There were even talking about ditching the carbs and going fuel injected in 1976! Damn, I miss the days of these exotic one-off machines.
1975 Factory Hondas- Motocross Action March 1975