I suppose it depends on how you ride. I assume if your doing 20k a year its a commuter? Ive just upgraded the pads in my gixer to carbon lorraine sbk5+ and have noticed an improvement for fast road use. No fade whatsoever, and seem to be a fair bit better than the OEM's. How long they will last i dont know, but they do seem noisier at lower speeds and at junctions, so maybe they wont last as long. You cant go far wrong with oem though if you want them to last.