Originally Posted by Scotty_Dog .
You will need a "suspension corrected" rigid fork that is comparable in length (crown to axle) to your current fork.
FWIW. While a "suspension corrected" fork may be the ideal choice, it also may not be ...
That is, the drawbacks of choosing most rigid forks which have cantilever brake bosses and/or disc brake mounts will probably be minimal compared with the unnecessary anguish in trying to find the perfect rigid fork ...
That is, close enough
([COLOR= #808080]or, shorter[/COLOR]) may result in a slighty better head tube angle if the actual axle-to-crown height is less on the rigid fork than on the current suspension fork ...
- for example, if the frame's current specs indicate a 72Âº head tube angle, then a fork which is about an inch shorter will result in a head tube angle which is closer to 73Âº ([COLOR= #808080]the "norm" for Road bikes[/COLOR]) ... [COLOR= #008000]a good thing[/COLOR].
The drawback in a readily available Rigid Fork ([COLOR= #808080]which may-or-may-not be significant[/COLOR]) is the resultant height of the BB shell will be slightly lower AND the reach may be a ([COLOR= #ff0000]Â¿[/COLOR][COLOR= #808080]half-[/COLOR])centimeter more ...
The change in BB height is probably only a significant issue if your bike has 180mm-or-longer cranks.
FYI. 29er Rigid Forks have a greater axle-to-crown length than 700c Touring-and-CX forks ... I think the latter are actually dimensionally close-to-or-the-same-as most 26" Rigid Forks and the difference is in the location of the cantilever brake bosses.
That's my very long-winded way of saying that other than steerer size that I
woudn't worry too much about the particular Rigid Fork which I might choose for the type of change you are contemplating AS LONG AS it isn't
a "standard" ROAD FORK ([COLOR= #808080]i.e.
one which uses a standard 39-49mm brake caliper[/COLOR]).