I am on my 5th RT Ltd since 2011 and never had an issue pulling a RT622 trailer on the 2011, 2014, and 2016. I've never had a brake disc problem either, but the 2020 and 2023 have cost me 6 sets of discs. I brake using engine compression like crazy but that can't always be enough, and only once did I have to use heavy braking!!! So in my book, the quality since 2020 really took a dive for the worst, probably made in China Brembo. I have just received my new floating disc brake from Martin and sure hope these good looking discs will do the trick!