MTB Mechanic: Crank – Bottom Bracket Square Taper

By Lennard Zinn
Published Jul. 1, 2011
Updated Nov. 17, 2011 at 11:17 AM UTC

Is your mountain bike covered in mud? Chances are the part hit hardest by the mud was the bottom bracket. Singletrack.com’s Lennard Zinn explains how to remove, clean, and replace a bottom bracket square taper crank.

FILED UNDER: Bikes and Tech / Video TAGS: Bottom Bracket / Lennard Zinn

Lennard Zinn

Lennard Zinn, our longtime technical writer, joined VeloNews in 1987. He is also a frame builder, former U.S. national team rider, and author of many bicycle books including Zinn and the Art of Mountain Bike Maintenance, Zinn and the Art of Road Bike Maintenance and Zinn’s Cycling Primer: Maintenance Tips and Skill Building for Cyclists. He holds a bachelor’s in physics from Colorado College. Readers can send brief technical questions to Ask LZ.