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It shouldn't be a problem. Both bikes have FL front ends, and the outer diameter of the tires are within .06" of each other.
If you want to check ti yourself:
* Softail Slim has an MT90-16 (which equates to 130/90-16 in metric sizing)
* Fatboy Lo has a 140/75-17
Plug the two metric sizes into the online calculator and voila!
Are the holes the same spacing on Fatboy and Slim?
I have the same question in reverse. I'm wondering if fatboy fenders will work on a slim. I'm looking for fenders to mess around with shapes and paint and used slim fenders are few and far between. Does anyone know if the holes are the same spacing on both? I tried the calculator mentioned above but it wouldn't take 90 for the tire size, only a maximum of 85. Can anyone help?
Last edited by chmartist; Sep 9, 2013 at 02:22 PM.