A motorcyclist died Friday after troopers said he crashed into a guardrail along I-275 in Manatee County.

The crash happened at 12:05 p.m. in the southbound lanes of I-275 near the interchange with I-75.

According to the Florida Highway Patrol, Dennis M. Gingras, 64, of Tarpon Springs, was riding a 2011 Harley-Davidson south on I-275 when he failed to negotiate a right curve in the road.

The motorcycle traveled off the north shoulder and hit a guardrail. Troopers said Gingras, who was not wearing a helmet, was thrown over the guardrail and landed on the grass shoulder.

Gingras was pronounced dead at the scene of the crash.