Ghost Rider, Neil Peart.

Peart is a drummer in a Canadian rock band who, lost his daughter in a car accident and then is hit with the death of his wife about 13 months later.

He jumps on his BMW and takes a motorcycle journey all around Canada, the US and even down into Mexico - looking for a way to get past his pain. It's told from his perspective and thru letters to friends and family. I think his final mileage for the trip was 57k miles - it was a long ride and the best parts of the book are his travels to places I have been or passed thru.