Marin County’s premier shop for serious mountain bikers

Located in Fairfax, CA – the very birthplace of mountain biking – B-17 Bikes provides what passionate mountain bikers need: reliable, timely repairs, appropriate performance upgrades and a community of focused trail riders and racers.

A shop with the experience to support your ride

Shop owner Jim Hewett has been mountain biking for more than 30 years and racing, building and repairing bikes for nearly 20. Jim takes bikes seriously. His racing career taught him that investments in quality components and regular maintenance pay off in improved performance and greater enjoyment of the sport.