This game is bullshit.
But why it s written : "A player cannot accelerate more than 2 times in a row" ??
On turn x you can accelerate the peloton. It moves one additional space and you spend one of your six pursuits. No other player can pursue with the peloton this turn (since the peloton is already pursuing).
On turn x+1 you can accelerate it again. It again adds one movement to the peloton. And costs you another pursuit. No other player can pursue this turn.
On turn x+2 you *cannot* accelerate the peloton by pursuing. Thematically, I suspect your support riders are tired from the exertion and need to rest. If another player chooses, they can pursue (they take over the lead of the peloton and take on the bulk of the workload).
On turn x+3 anyone can pursue (to a limit of one player).