Reddit mentions: The best bike brake rotors

It depends on conditions, how you ride, what brake pads you use, etc etc. I'd personally start super cheap with something like this (http://www.amazon.com/gp/product/B00F0653KG/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1) and upgrade as needed. Worst that will happen is you destroy a set of pads and have to get new rotors and pads but they very well might be fine and you can save a bit of money. If you ride in mud a lot and you burn through a set of pads too fast maybe get a set of Mud Runners. Otherwise the only reason to upgrade from super cheap simple steel rotors is weight and better heat dissipation (Shimano IceTech stuff, though this is mostly for MTB).

As far as the Mud Runners overheating on MTB trails, I'm not really sure... You might just have to try it out.

I bought mine on Amazon. I've got Shimano Deore (m445's) and the rotors are $17 for the 180mm on Amazon. I bought spares but haven't needed them. Rotors are as true as when I first rode the bike, and I've went quite a few times downhill where they got plenty hot.

They'd fit yours, the 180's generally work fine replacing a 185. They're not heat treated though so you have to use resin pads, not sintered.

What kind of rotors are on yours now? I like circular, and just drilled. Some of these wavy and "light" rotors don't seem all that great an idea to me. They just introduce weak points for the rotors to warp, and present less surface area for braking. FWIW, I bent the hell out of my front rim months back, and the LBS lent me a rim a few weeks while mine was getting rebuilt. It had one of those "light" rotors and the difference in braking power was almost scary.

To me, this rotor is going to work a lot better than this one.

There unfortunately is not any standard caliper thickness.

Potential solutions include:

1. Use spacers (Example) to push the disc rotor further from the hub, to create more space between the hub and the rotor.
   
   
2. Switch to a larger rotor, which could hopefully move the caliper out to a spot where the hub is thinner.
   
   
3. Switch to a different caliper. Hopefully someone else can offer recommendations for calipers that are thin enough.

RS11 wheels are not disc brake compatible, you'll have to filter by disk wheelsets on whatever website you were planning to buy from. Make sure whatever wheels you pick have the same hub spacing as your bike, which is probably 100mm front 130mm rear if you have a road bike.

Everything else you said is fine, that's all you'll need. If you have dual-caliper disk brakes you won't have to worry about adjusting them between wheelsets, if you have single-caliper brakes some disk spacers might come in handy https://www.amazon.com/Syntace-Disc-Shims-Bag-8/dp/B001PTBPY0

For those that were asking, these are the rotors in question:

Cheap Rotors

If anyone has links to other cheap rotors that work, please share

I'm using resin Shimano B01S pads with the Magura Storm HC 180mm rotor:

https://www.amazon.com/Magura-Storm-Bicycle-Brake-Rotor/dp/B0178UGTEA?th=1&psc=1

I was previously using the Shimano SM-RT56 160mm rotors, and though their stopping power was inferior to these new 180mm Maguras, they never experienced any issues with heat dissipation, even under the most extreme conditions. They seem to have more drilled area and less metal surface area.

https://www.amazon.com/Shimano-SM-RT56-Brake-6-Bolt-160-mm/dp/B00971FX82/ref=sr_1_3

Are there any particularly good rotors that you would recommend over the Magura Storm HC 180mm that I'm using?

Thanks for bearing with me as I learn about all this

Centerlock and the diameter is all that matters, right? I'm looking at this campy rotor (I'd be getting a 160 for up front and 140 for rear) - it says it's for their H11 Hydraulics, but it'll work for my application too, right?

I think that the only real solution is using very thin spacers (for the cassette) and shims (for the rotor). Otherwise you're just running up against minor differences in spacing between hub manufacturers.

https://www.amazon.com/SHIMANO-SM-RT54-Brake-CenterLock-160-mm/dp/B007Q4M6PU/ref=asc_df_B007Q4M6PU/?tag=hyprod-20&linkCode=df0&hvadid=312065280674&hvpos=1o2&hvnetw=g&hvrand=7948621623917630703&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021359&hvtargid=pla-571345704636&psc=1&tag=&ref=&adgrpid=62425943472&hvpone=&hvptwo=&hvadid=312065280674&hvpos=1o2&hvnetw=g&hvrand=7948621623917630703&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021359&hvtargid=pla-571345704636