QUOTE(davidke20 @ Aug 10 2013, 01:06 PM)
Having a large disc brake is not entirely base on wanting braking power. When you have a larger rotor that matches your rim size, you'll get a lot more easier threshold braking. I'm not saying stock brake no good or the imported pads is flawed. The fact is, when you have a small rotor with a bigger wheel, as and when you try to clamp your brakes, either it doesn't bite, or it bite harsh and you jam brake

Don't forget, iswaga front end so dem heavy, you can't possibly work on 50/50 brake force distribution. My case, ayam guessing most of my braking power has been routed to my front, my rear brakeshoe can last like forever

actually, it is easier on threshold braking because to have much more braking capabilities you essentially lower the time required for threshold braking and thus you can spend the remainder time to tackle a corner and/or accelerate faster during/exiting the corner; and of course larger disc means bigger cooling surface which would prevent your pads fading if you threshold brake too much/too frequently.
rim size aside it's more of a weight problem; The 5kg/rim i'm using for the ad08r right now is actually lighter than the majority of sport rims at 14" and even to an extent on cheaper 13" rims, granted there aren't that many choices for 13" and below anyways lol
and as we know the weight is the main factor on creating the heavier momentum that warrants better braking force
which is why i opted on upgrading my rotors, and spending so much more on the brake pads which so far has never disappointed me except for the detachment part which i suspect it's more of a aging stock issue
and yea, the rear brakes pretty much last forever since they aren't really worked on. although somehow i'm having a lot of dust generated at the rear not sure because of really bad braking habits (prolly cuz i want to finish the front bpads faster so i can get brand new ones of the same pads from UK directly LOL!) or the shoes are dusty... (bendix ceramic based, supposed to be low dust, but as i found out recently that's BS LOL!)