He apparently drove back to the parking lot to commit the act.
Four of them, aged 20 to 24, were each fined S$87 for paying senior fares.
The racing stars were in Malaysia for the Petronas Welcome Home Programme.
The cards are allegedly sold out at most petrol stations.
Cyclists can only ride in groups of 5, 10 if 2 ride abreast.
The victim's wife is reportedly 3 months pregnant.
Some "gave up on life" and decided to wait till the next morning.
He's still unable to walk properly, and will undergo surgery soon.
A 22-year-old man was examined for injuries.
The craft beer is 95% NEWater.