Bottom Bracket

Bookmarks

Klein Problem 1

Shows Klien's unique bottom bracket, talks about Klein bike history/design.

https://jimlangley.blogspot.com/2008/01/q-klein-pressed-in-bottom-bracket.html

Klein bikes from the 80's/90's have 2 press fit bearings and a square taper spindle.

Consider just removing the bearing seals and re-greasing instead of removing the bottom bracket.

You can try knocking out the spindle with a hammer (support the frame with wooden blocks).

*Mentions a Reset Racing tool, but I can't find it now.

Articles

Cup and Cone Bearings

Bicycles have used cup and cone bearings in rotating parts for generations. Nowadays many parts are replacing them with sealed bearings, which are less servicable but entirely replaceable. Cup and cone bearings are easily maintained, but if parts wear out can be difficult to replace.

Maintenance

Fresh bearings are packed with grease, but over time moisture and grit can work it's way in. Bottom brackets and wheels can pick up serious dirt that can increase wear on bearings and races. Service bearings periodically to clean out dirt and replace fresh grease.