Lennard Zinn Releases Updated Mountain Bike Maintenance Guide for All Mountain Bikes, Hybrids, and Fat Bikes

All Speeds, Suspensions, Wheel Sizes, Shifting and Braking Systems Boulder, CO, USA — February 13, 2018 — Lennard Zinn, the world’s leading expert on bicycle maintenance and repair, has released the new sixth edition of his best-selling guide Zinn & the Art of Mountain Bike Maintenance, which is now available through its publisher VeloPress. Offering…