As said above they are as near as I can tell a 29er frame and fork fitted with 650b+ wheels and tyres. 38mm internal rims on ours. The 3 inch Purgatory is massive compared to the 2.8 Butcher
Never had a problem with the any of the PF 30 BBs or with any of the bearings and wouldn’t be put of buying one which had them in.
When running in 650B+ mode the bottom bracket is a tad lower.
Any other info you need just let me know
We run a couple of Turbo Levos in both modes and the preference varies on who is riding them.
Out of interest what size and model are you looking at and price range as we have a couple of medium full bikes that are specked up quite well and have had little use and also a frame that will be up for sale once we get round to it.
Enduro and Stumpjumpers