Around 8:30 a.m. Wednesday, officials responded to the call on Forest Ridge road at McConnell road in the town of Brooklyn.
Witnesses told police the bicyclist, an 18-year-old Green Lake man, was headed south on Forest Ridge Rd. when he ran a stop sign. He then hit the side of an eastbound pickup truck driven by a 40-year-old West Bend man.
The incident remains under investigation and FOX 11 will have more details here at fox11online.com as they become available.