I have a Surly Karate Monkey with disc. brakes. Wanting to add a rear rack. Anyone have any brand/model suggestions. It seems the disc brakes limit the available offerings.
Thanks

I had a KM for a month...and the rack was a pain. If memory serves, I ended up using a Tubus Fly and going to the brake bridge...but it was a while ago.

Topeak has a few disc specific/compatible models- https://topeak.com/products/Racks

I have been using a Topeak Super Tourist for 5 years without any problems. It has survived some pretty tough conditions, especially this past year in a couple 130 mile gravel grinders and a fully loaded 900 mile tour. I don't know if it will have enough clearance for a 29er MTB tire, but I would think the Explorer 29er rack would fair as well.

Check out Planet Bike for a reasonably price alternative. I have their non-disc rack, the KOKO, and for $35-40 it's hard to beat. They have a similar model called the Versarack that is disc-compatible.

https://ecom1.planetbike.com/4004.html

If money is no object, Tubus makes the best racks without going custom.

I've been using the Tubus Logo Titan for three years now. At 390 grams, the fact that it's rated for up to 66 lbs impressed me at time of purchase. The durability of the titanium tubes have impressed me on a day to day basis. It's the most solid rack I've ever owned. The only downside, if it is one, is that the top section is relatively narrow. Hence, many trunk bags are a bit wide to fit well. I've run full size panniers using the upper tubes and smaller front panniers using the lower tubes. Both combinations work quite well.

I've been using a Tubus Cosmo for about three years and have never thought about it since installation. That's exactly what I want in a rack, it just works, never causes a problem and I don't have to think about it. My trunk bag fits perfectly, it works well with a variety of bags, I love the mounting for the B and M light and it looks good too.

It was also the easiest rack I've ever set up - I think I had it done in something like 10 minutes (maybe less).

Just got a Tubus Logo recently myself. Strong, decent-looking, and best of all, it doesn't rattle!

Old Man Mountain, Sherpa Rear Rack - these are made to fit on just about any kind of bicycle - they even make a fat-bike compatible version. The bottom of the rack attaches to a specialized skewer that they provide, which makes them about as strong and quiet a rack as one could hope for. Best of luck.

Thanks everybody, I am looking at all the suggestions, one thing I failed to mention is that my bike has an 8 speed alfine internal hub which rules out the racks with a skewer....I think.

I use a topeak explorer rack with an MTX trunk bag. I have yet to see a better combo for my needs.