Learn how to overhaul, adjust, maintain and fine tune a bike's bottom bracket (the axel, bearings, cups and lockring a bike's crank and pedals turn on).

Traditional adjustable cup bottom brackets are preferred and will be the most comprehensive to learn adjustments. Adjustable cup bottom brackets are found on most older bikes (pre '90s) that have 3-piece cranks. Cartridge bearing bottom brackets (the current standard) will also be covered but can not be serviced, only replaced.

Please contact instructor Leo Cruces to reserve a place in this workshop. Drop-ins will not be turned away, but those who RSVP beforehand will be given preference. This class is limited to 6 participants maximum. Contact Leo at 202.215.0677 or email leo.cruces@gmail.com

Gain a comprehensive overview of bicycle mechanics in this 8 week Build-A-Bike course. This class will cover it all, including headsets, bottom brackets, hubs, wheel truing, brakes, shifters and derailleurs as well as finishing work and trouble shooting.

Registration for this class is no longer available. Check the calendar of classes and events for other Build-A-Bike classes.

Build your own set of wheels!

Participants learn to determine spoke length for a hub and rim of choice, lace spokes into a wheel, apply tension to spokes, and make a wheel round and true. Wheel building theory will also be discussed in class. Participants may choose either a one or two night course to build either a single wheel or a set.

Participants must contact instructor Jim Freeman to arrange registration for this class. This class has limited participants per session. Enrollment is secured with payment to the instructor. Recommended donation for participation in this class is $50 for a single night session or $75 for a two night session. Payment arrangements must be made with the instructor.

Contact Jim at jim@lawyerjimfreeman.com or (312) 282-7895