I recently bought a bike with disc brakes for commuting (Jamis Nova Race) and I don't know what fenders will fit it. I have eyelets so that's not a problem. I have an old set of SKS (45mm) fenders from an old bike that I tried to fit but they're impossible to mount with my disc brakes. I suppose that I could get really long spaces and really long bolts but that doesn't seem feasible given the distance. I also tried putting the brakes between the wires but that doesn't fit either. However, it seems like if the wires had a larger angle and didn't bolt on placement it could fit. I don't really care about reusing my old fenders, I just don't know what look for when buying new ones.
All of the fenders I see online look roughly the same as the ones I currently have that don't fit. The only ones I can find that say they're specifically for disc brakes are these:
Higher resolution picture:
which just look like all the others only with built in spacers. Even those spacers don't look long enough. Attached are pictures of trying to fit my old fenders on my new bike. Those pictures are trying to fit the front fender I haven't tried the rear but I took a picture of the clearance for my rear tire. I'm not sure what width will fit, probably 45mm but I'm thinking 35mm might be best. I don't honestly care as long as it fits. I tried searing here and elsewhere and there just isn't a lot of information that I can find about fitting fenders with disc brakes. I'd prefer not to have to buy anything or modify the fenders to get them to fit. I've had bad experiences trying to fit fenders in the past.