bearings

Sharing some learning - The front wheel bearings on my ST90 project were completely frozen and in need of replacement. These bearings are very difficult to remove. There is an axle sleeve in the hub - in between the two bearings. The presence of the the sleeve makes it impossible to tap either...

I've got a situation here that I am hoping some of you would'nt mind shedding some light on. Looking at the headtube I am almost certain that the bearing raceway will not fit into the ? headtube mount for the lack of a better term (feel free to school me on the proper name because I need to know...

So my Grandpa passed away about 2 years ago and my grandmother has been doing some cleanup at in the office where they had run a local business together for the last 50 Years. Okay, it's not really a "barn", but in the back warehouse was a 1970 ct70 K0 that had been sitting since probably the...

I wanted to share a technique, for problems with loose fitting cartridge bearings, that I have learned through my years as a bicycle mechanic. Technically it is known as knurling. When you have a press fit cartridge bearing that is no longer "press fit" due to wear and or poor tolerances you...