MTB Crank has a persistent thunking click on the left-pedal downstroke, seems like only thing left is the bottom bracket.
This spec says
SHIMANO CARTRIDGE BOTTOM BRACKET, BB-ES300 SPLINED/HOLLOW-TYPE AXLE BSA 68MM-118
but BBES300 68x118 in English threading (that's what "BSA" means, right? Not Italian anyways) seem a little hard to find.
Would any English-threaded Octolink V2 68x118 work as well as any other? For instance BB-ES51?