I checked HD and the touring and Dyna model calipers I got have different part numbers - not sure of the size difference though.

 

I'd be interested in this also.

 

my '09 fat bob had lousy braking up front and now my '11 has great breaks.Why,I don't know but maybe changing pads and bleeding them out will help you.The potential for good stopping is there,just needs to be sorted out.

 

It actually stops pretty good, at least when compared to the single disc I used to have, nice firm feel and two finger brakes but if bolting on a set of these would improve things I'm all for that.

 

I put dual Touring calipers on my '06 Street Bob a few years ago and did a test of them. Here are the results:
https://www.hdforums.com/forum/dyna-...t-no-fade.html
It was a great upgrade. Jay

 

You used Vrod lowers with the touring calipers didn't you? The Fat Bob lowers have different mounting locations and the brake pads don't fully contact the rotor. I know because I have the pieces and put them together to check. I'm running a Vrod Brembo caliper on my 07 Superglide and the brake pad doesn't fully contact the rotor.

 

The wrong way:



This is Jay Risks bike done the right way:



You can not put a Touring/V-Rod Brembo onto any 2006~Current Dyna without some kind of modification where the calipers are re-located lower for a 300mm rotor.

 

What about using touring rotors with the Fat Bob sliders?

 

Use the head! The reason why any 300 mm rotor either it be Touring or Dyna is because of the caliper mounting. Unless you are prepared to make relocating brackets (as said before) than you do not use Dyna sliders. What do you think would happen when you get some wear on those pads? Why do you thank that all rotors have a small band of un-swept area on the outside of the rotor? Why make rotors that large if they do not need to be that large? I make my living figuring out this stuff. It takes time, money for R&D as well as buying this stuff to measure, and effort.

 

in the picture of the "wrong way" does it have 11.5" rotors or 11.8"?