I had this problem on my 07 stock czar. As previously said a longer bb would cure it,but you can also take a couple of millimeters of material off your cranks with a grinder without reducing strenght to much
If you want some advice worth yoru while heres my top tip DONT BUY A FRAME BECAUSE IT IS STRONGER THAN OTHER FRAMES. Why not buy a stronger frame than another? if you weigh loads surly it makes sense
Just been looking on tartybikes at the disk rotors. Was looking at the rockman one mainly, they say the holes help the pad bite to them? Shurly more surface area would make more friction and then better braking?
I have just ordered 2 rockman hubs from them. front £50 rear £70 well cheaper than tartys. My friend has ordered loads of parts from them and recomended them.
Get an avid bb7 for the front,they are easy to set up and have better bite than a hope. also cheaper and less maintenance. For the rear a magura with echo lever heatsink cnc yellows on a harsh grind.