I've owned my HP2 for 40,000 km and for 5-6 yrs since new. 90% offroad on trail, fireroads, logging roads and hydro lines and trackdays with the SM rims averaging about 5 per yr, max 10 per year. A few long trips thrown in as well.
No fade, no hiccups, no issues. Some have had issues mind you, but not me. I bought another spare one at a 10th of its factory price.
2006 BMW HP2E, 2015 Triumph Rocket III Roadster. Married men don't live longer, it just seems longer.