MADB":4u372y61 said:
100mm forks are definitely going to be pushing the limits of a usable bike but 80 looks fine.
I have some crap SR 100mm forks that I might put on the Saracen just to see how it works out as an experiment until I can find another suitable frame
Best idea so far.. Try it out!
But even better than that is to get some measurements...
100mm vs 80mm vs 140mm is in part meaningless.
The
actual height your headtube will end up at depends on the axle to crown length, minus sag. I have a pair of Suntour 100mm travel forks.. I also have a pair of 100mm Magura Odur's, and 100mm 2002 SID's. They all have different 'real-world' heights..
If you're thinking of going with Maguras, SID's, etc then I think you'd have no problems as their heights tend to be 470mm or so at most. More modern Suntours, Rebas etc are more like 480mm+, so there's 10mm of height difference for the same travel.
3-4 year old figures, but for example:
Fox F80: 450.9mm
Fox F100: 470.9mm
99-08 SID 80: 451mm
SID 100: 473
Magura Odur 100: 473mm
Manitou Minute 100: 478mm
Marzocchi DJ 100: 490mm
I'd suggest measuring the Suntour height, pop them on & see if it feels/looks too high, if not - go for something similar, or if it does, go for something
smaller, but with the same travel. What you don't want to do is dial in so much sag to get the front end low that you end up with the forks bottoming out!