None that I can tell. Is it because I weigh 142 pounds? I dunno. Maybe it’s like that new stem that is claimed to be 40% stiffer than the other guys stem. So 40% stigpffer than something with no flex to speak of equals who cares. I happened to need yet another 30 mm BSA BB and a chainring at the same time and rather than go the same route again with another $50 or so aluminum ring and another $50 or so BB I decided to simply retire the five year old cranks and purchase a new XT crank with its steel ring and $25 BB for just over $200. The XT is about 200 grams heavier on my scale than the Raceface but that isn’t that important to me.
It just got me thinking about this whole stiffness metric that is a big selling point in bikes. Or boost. Yeah boost is stronger due to a better bracing angle but I have zero problems with non boost and can’t really tell that my new bike is boost. Faaa. Marketing.