The crash in the peloton, which held up all bar 30 or so riders, came with seven kilometers remaining. Most of the race favorites emerged unscathed to finish in the front group.
That included fellow Kiwi George Bennett, who finished in 68th to move up into 50th overall - 51 seconds behind Bevin. Bennett was initially set to work for Primoz Roglic, who was Lotto NL-Jumbo's designated leader, but Roglic was caught up in the crash, losing a minute and 42 seconds to now be 2.33 back on the Bevin, in 104th place.
As a result, Bennett may become the team's leader as the race heads into the hills overnight, with a 239-kilometer route from Follonica to Trevi - in which Bevin will be highly unlikely to retain his overall lead.
The other New Zealander in the race, Jack Bauer, avoided trouble to finish in 17th for the stage, and sits 1.40 back on the overall standings.
The race ends on Tuesday with an individual time trial in San Benedetto del Tronto.
- With AP