Memory of Running by Ron McLarty
Smithy a 40 something man from Rhode Island finds himself on a bicycle road trip after his parents are killed in an auto accident. He finds a letter from California police that his father had received identifying a body as that of his crazy sister Bethany. With his life at loose ends, he spies his old bicycle in the garage and sets off out of the blue for California to claim his sister's body. The trip becomes a life journey meeting people along the way and freeing him from his past life but yet returning him to the neighbor girl who was always there.
Very good - easy read.