About the Author
Peter Gantriis is founder and president of RPM Research, LLC, a market research and consulting firm that works with the world's leading automotive and powersports manufacturers. He is an avid motorcycle enthusiast and the author of Motorbooks’ The Art of BMW. Peter lives in Mahtomedi, Minnesota.
DOUG MITCHEL is one of the industry's hardest-working motorcycle writers and photographers. He has written several motorcycle books, including the best-selling Harley-Davidson (Motorbooks, 2007), a celebration of 100 years of America's iconic motorcycle.