And what’s the verdict on how to fit them? I’ve tried different variations on “put crank on, tighten bolt”, but generally within 6 months I’m seeing play in the NDS crank as the taper’s gone in the cranks 🙁
Clean threads in BB shell of frame, apply copper grease. Screw the cartridge into the driveside (LH threads of course), doesn’t need to be super-tight. Then screw in the NDS retainer, again don’t overtighten.
I then like to clean up the cranks (and tapers) whilst off the bike, then lightly grease the tapers and tighten the bolts pretty firmly with a 4 or 5 inch long allen key. Keep an eye on them for the first 3 or 4 rides, tightening a little if necessary, but just don’t overdo it!
What’s the deal with a square tapered bottom brackets? One on the roadie has quite a bit of play in it, and it’s causing rubbing issues on the front mech now. It doesn’t look serviceable, so I resume it’s time for a new one. Can anyone recommend a decent one? I’d prefer one I can change the bearings in myself, but I don’t know if you can get square tapers like this?
Sorry, only other square taper I’ve owned went in the bin after a couple of months, not had to buy a new one before.