Lennard Zinn is the world's leading expert on bike maintenance and repair. A professional frame builder and bike designer, Lennard is also the technical writer for VeloNews magazine, VeloNews.com, and contributed to Singletrack.com. His other books include Zinn & the Art of Road Bike Maintenance, Zinn & the Art of Triathlon Bikes, Zinn's Cycling Primer, The Mountain Bike Performance Handbook, and The Mountain Bike Owner's Manual. Zinn was a member of the U.S. national racing team and has been riding and fixing bikes for over 50 years.
