Park Tool mechanic, how-to video host Calvin Jones retiring

Park Tool's director of education, Calvin Jones, is retiring after 28 years with the company. Jones developed a loyal following on Park Tool's YouTube channel, which has more than 916,000 subscribers and 13 million annual views. Working with Park Tool's creative team, Jones has hosted hundreds of free how-to videos in the past 15 years. Jones is credited with managing:

The Repair Help section of parktool.com, with a library of nearly 200 detailed how-to guides.

The Park Tool School, a full set of curriculum designed for teaching bicycle maintenance in a classroom setting, first published in 2000.

The Big Blue Book of Bicycle Repair, a complete bike maintenance handbook now in its fourth edition.

The Park Tool Tech Summit, a recurring series of in-depth seminars and lectures for professional mechanics from 2009 to 2013.

Jones, whose first bike shop job was in 1973, also was team mechanic for USA national teams, mechanics instructor at the U.S. Olympic Training Center, and chief instructor at Barnett's Bicycle Institute.

Jones will continue to be involved with the Stillwater chapter of the Minnesota Cycling Association and maintain his seat on the board for Project Bike Tech. He will periodically contribute to Park Tool video projects and will attend iceBike in London and Frostbike in Minneapolis this year.