Over time hub standards have changed. Here is an indepth overview of current standards, and why/how hub sizes changed.
Rail29 Mountain Bike
All-new HUNT Trail Wide and Enduro Wide Wheels - Mountain Bike
NOBL Bike Check - Chris M's Evil Following V3 - NOBL Wheels's Bike
Boost Wheels and why this spec does matter
Evo Cycles - Nobl TR32 Carbon Wheelset i9 Hydra hubs
To Boost Or To Superboost: What's The Hubub On The Hubs?, 52% OFF
Chris King MTN30 Wheels
Pivot Bikes For Sale - New & Used - Pivot Mountain & Gravel Bikes
Super Boost Axle Spacing: What is it Good For? - Singletracks
Rail29 Mountain Bike
Yeti SB150 - Yeti Cycles
Rear Bike Wheel, Bike Rims For Sale