We chose T47 as it resolves issues with PF92, instead of Press-Fit T47 is (YES) threaded.  A 86-92mm shell allows the chainstays to be welded to the shell at a wider than a standard 68-73mm BSEN BB Shell. All of this results in more tyre clearance and a stiffer Bottom Bracket area, which is excellent for Belt-drive...  This BB standard is backward compatible with 30mm SRAM DUB and Shimano 24mm crank spindles.