The CHP identified a motorcycle rider who died Sunday in an east Napa County crash with a fire truck as a 38‑year‑old Rohnert Park man.

Carlos Lorenzo‑Guerrero died after losing control of his bike on Highway 128 in a curving, narrow area of the rural highway, the CHP said. The westbound 2014 Yamaha rider ended up in the opposite lane and ran into a Cal Fire truck carrying firefighters headed for a crash, the CHP said.

Lorenzo‑Guerrero died in the impact of the 1:40 p.m. collision. His bike ended up underneath the engine.

Cal Fire Engineer Timothy Erskine, 39, was driving the truck about 25 mph. How fast the motorcycle was going remained under investigation.

The uninjured firefighters worked the crash scene, the CHP said.

The collision happened east of Lake Hennessey, near lower Chiles Valley Road, officials said.

You can reach Staff Writer Randi Rossmann at 707‑521-5412 or On Twitter@rossmannreport.