Bevin fell in Monday's stage 3 near Eparney and again in stage 4 on
Tuesday when he fractured two ribs. He rode stage 5 but was in
"I fell on my left side and caught a wheel to the chest," Bevin said on the CCC team website.
"I thought I had got away with it at the time and I didn't have any
trouble when I got back into the race, no skin off or anything like
"I thought it wasn't too bad but as the stage wore on, it got worse."
X-rays showed two fractured ribs on the left side, prompting the team to pull him out of the race.
"Although Patrick wanted to try and race on stage six, this morning
we collectively made the decision that he should stop racing in order to
recover well and focus on his goals in the second part of the season,"
said CCC's chief medical officer Max Testa.
Bevin also quit last year's Tour after struggling to keep pace with the peloton on the 14th stage.