Bolt Replacement

Roger Brown walks us through the ins-and-outs of safely replacing old hardware with new, clean, bomber bolts.

By Cheyne Lempe | May 21st, 2018

“Roger Brown is the foremost expert on replacing bolts in granite.”

—Ben Doyle, former Climbing Ranger, Yosemite National Park

In this short video from several years ago, longtime Yosemite climber and bolt replacement expert Roger Brown explains his process: his homemade tools, the steps he follows and the little tricks of the trade that go a long way toward making Yosemite’s walls safer for the multitudes that climb them each year.


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