Replacing a rigid fork with a suspension one - crown-race to crown compatibility
I'm replacing a rigid fork with a suspension one (both have threaded steerer).
I'm reusing the original headset (the suspension fork didn't come with one) and everything seems to match fine except for, potentially, the crown race which I'm slightly worried about.
The crown race is "coned" i.e. on the inner side it has a "step" between wider and a narrower "ring".
/ | | \ - smaller ring/diameter
/ | | \ - wider ring/diameter
The bottom of the steerer of the original fork is cone-shaped (matching the coned crown race) whilst the crown of the suspension fork is flat in place where the crown race goes.
Effectively, the crown race I've got, once installed on the suspension fork, is "resting" only on the wider ring. As a result, the crown race is supporting the headset/headtube/frame/cyclist only via its wider ring and not the internal/smaller one.
I am worried that the crown race is going to break in no time (although I'm ok if it will just reduce it's life by say 50%).
I am also worried about any potential safety implications... .
I know mixing and matching crown races and headsets is not a good idea so replacing the crown race doesn't seem like an option.
Replacing the whole headset means additional cost and replacing head-tube races which I'd rather avoid. (not sure whether I can do it without special tools/damaging the frame)