Hubs & Bearings
How to Replace Bike Hub Bearings: Identify, Pull, Press, Check
How to replace bike wheel bearings in a sealed cartridge hub: read the code or measure, pull the old ones, press new ones on the outer race, check for play.
Tech Tips
Repair guides written from the workstand in Ballston Spa — bleeding brakes, chasing creaks, setting preload, and the tools each job actually needs.
Hubs & Bearings articles
Hubs & Bearings
How to Use a Cone Wrench: Hub Cone Adjustment, Sizes & Sets
What a cone wrench is for, the step-by-step hub cone adjustment, which sizes fit which hubs, and how far a regular wrench can take you instead.
Hubs & Bearings
Headset Standards Explained: Reading the SHIS Chart
A reference guide to the SHIS headset identification system: what the EC, ZS, and IS prefixes mean, how to read cup and bearing dimensions, how to identify an unknown headset on the bench, and the Unior tools that press, pull, and set each part.
Hubs & Bearings
Bearing and headset service: a workshop guide
Workshop guide to bearing service: cup-and-cone hubs, cartridge bearing press and puller technique, headset cup install and removal.
Hubs & Bearings
Frame prep: head tube, crown race, and star nut work
When a head tube needs facing, when the crown race needs pulling or setting, and how the star nut closes the steerer-prep chain. The frame-prep walk-through for everything north of the bottom bracket.