Zipp ZM2 Rear Hub

Joined to add my experience with this hub. I've been riding the ZM2 hub for 2000+ miles. They came with my 3Zero Moto wheelset that I managed to get on sale in September 2021. I originally expected to replace this hub since it seemed to be relatively inexpensive. I was surprised at the engagement, durability, and its relative lack of weight. The hub was serviced roughly 1000 miles in when my drive-train needed replacing but otherwise they've been maintenance free. The wheelset is installed on a 2020 Specialized Enduro which managed to destroy the original and replacement rear wheels before upgrading to the 3zero motos (the first was a crash and my fault but the second I would classify as a "hard hit" but normal riding conditions). I have broken spokes on two occasions with this wheel/hub combo (each time the rear wheel and again "hard hits") but the rims are nearly perfectly true.

This hub came with some Zipp 3zero Moto 29 wheel. I take extreme care of my bike as it’s my dream build. Washing, cleaning, greasing almost every ride (I know it’s too much, but my bike is standing in my living room and it’s my midlife crisis present to myself). Everything is torque to specs. I am not riding hard, nor in muddy extreme conditions. My drive train started to make some creaking noises then I suspected the crankshaft. But nope it’s my local bike shop that checked the free hub and the springs are messed up. This after not a complete season. Not a good hub. I may change it for a ratchet DT Swiss free hub.