# @onelungracing on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DcTui7GCkFm
- **Gondola URL:** https://gondola.cc/posts/70694430-onelungracing-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/88b8be7e17.jpg
- **Posted:** 2026-08-21T16:07:32.000+00:00
- **Account Owner:** One Lung Racing (@onelungracing) — https://gondola.cc/onelungracing

## Caption

The 500cc open class was the fastest thing in American motocross — and the AMA quietly
stopped running it. The bikes stayed on sale for another eleven years. The reason the pros walked away is in the engine. 
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#OneLungRacing #2Stroke #KX500 #CR500 #Motocross #OpenClass #AMAMotocross #TwoStroke #DirtBike #500cc #MXHistory #VintageMotocross #Kawasaki #Honda #Powerband #BigBore #MotocrossHistory #DirtBikeLife #MX #Enduro #RacingHistory #MotorcycleHistory #90sMX #80sMX

## Stats

- **Views:** 14,135
- **Likes:** 739
- **Shares:** 0
- **Comments:** 5

## Tags

kx500, motocrosshistory, honda, 90smx, 80smx, racinghistory, onelungracing, dirtbikelife, enduro, powerband, openclass, mx, bigbore, mxhistory, kawasaki, motorcyclehistory, twostroke, vintagemotocross, cr500, motocross, dirtbike, amamotocross, 500cc, 2stroke

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