Junior Heffernan, 23, was riding the second lap of the 66-mile Severn Bridge Road Race in South Gloucestershire when he collided with a vehicle at high speed. He died as a result of his injuries, Cycling News reported.
Officials have yet to release official details of the crash, but witnesses said Heffernan was trying to pass the peloton -- the pack of riders -- when the accident occurred.
The Severn Bridge race was the first in which "The Heff" was riding with his new team, Team Herbalife-Leisure Lakes. Officials called off the 10-lap race after the crash.
"This is a tragedy which will profoundly sadden everyone associated with cycling in this country," said British Cycling president Brian Cookson. "My thoughts are with Junior's family and with his friends."
Costly malfunction causes beer flood at Boston-area brewery
Video of Victoria’s Secret models trying to 'twerk' hits Instagram