I got lucky with SLX brake set on special CWC.....upgrade bug has bitten. I don't have a problem with the install or anything just some advice on the rotors.. I currently have the BR-M355 brakes with the SM-RT30 rotors and just wanted to change the caliper and brakes and retain the same rotors. On downloading the Shimano manual for component compatibility I saw that the recommendation is to use the narrow type rotor instead of the wide type: http://productinfo.shimano.com/#/lc/2.0 So ...has anyone used SLX/XT brake calipers with the wide (lower end) rotors? Does the wide and narrow rotor make a difference? have been to 3 lbs and they don't have an answer - at least no-one tried to convince me to buy the narrow type rotors - as what the result of using the SLX brake with the wide rotor would be.
