Often teams will field their fifth man in the early qualifying round to try and keep a rider fresh for later in the competition, but Cavendish believes the tightly knit four will ride every round having trained together full time all year, while the Manxman has been on the road.
Cavendish is likely to only serve as a back-up should one ride be unable to compete.
“I think the lads have been training together and they want to try and do [it],” he told Sky Sports News. “If something happens to them then I’ll ride.
“Especially Brad has been super stressed; he wants to be the hero and all that. I’m kind of just doing the omnium stuff now I think.”
31-year-old Cavendish has not won an Olympic medal, having missed out in the madison in Beijing in 2008 and in the road race at London 2012, and says that he’s “a little bit” disappointed not to be featuring in the team pursuit.
His early exit from the Tour on the second rest day in Berne, which denied him a chance at a fifth career win on the Champs Élysées in Paris on the final stage, was down to preparation for the team pursuit.
“If I’m honest, that’s the reason I left the Tour early, because of the team pursuit,” Cavendish added.
“For the Omnium, finishing the Tour would have been a benefit.
“At the end of the day I qualified for the Olympics for the Omnium anyway, so I’ll concentrate on the Omnium. That’s what I was aiming for the whole time. The team pursuit was a bonus to that anyway.”
The opening round of the team pursuit is on Thursday in Rio, with Cavendish set to make his first appearance in the games in the first event of the omnium on Sunday.