Originally Posted by
alcjphil
The fork in the picture needs a crown race so that the bearing will fit properly
the "race" is more like an Alignment seat, but yes, that fork will need it... it will also hold the outer race of the bearing up off the fork.
here's a Simplified primer on Rake and TRAIL... Bicycle people use the terms incorrectly... they also confuse offset with rake, further muddying the Bicycle waters... the drawing in this piece shows Zero offset...that won't be seen in the real world .
https://www.cycleworld.com/2015/05/2...ake-and-trail/
here's the Bicycle world version of the whole steering thing...
https://www.ebcyclinglaw.com/bicycle...teering%20axis.
in the automotive world.. "Rake" or "Steering head angle" is called CASTER... and CAMBER is a sideways version of CASTER.
the "offset" is used to alter trail and aid steering ease. You may or may not be able to sense small changes in this spec. A bike with ZERO Rake (Steering Head angle) will put you on your noggin in a hurry if you aren't prepared. Tiny differences in the specifications are the subject of Endless debate. Any number of Opinions exist.... feel free to look up several! Expect such a discussion to develop here shortly. I won't choose to join it.