Originally Posted by CycloTouristas .
Alfeg, the premise seems interesting but I don't quity get it. Whats the difference that way? Why the precessing problem doesnt occur that way? Have it work fine for many miles? Also do you recommend me to buy catridge bearings to put inside?
Yes, 'I' have found that MY solution
works very well ...
When the ADJUSTABLE CUP is on the driveside, the LOCKRING prevents the cup from unscrewing ([COLOR= #808080]
i.e., precessing as you pedal[/COLOR]) ...
Without the lockring ([COLOR= #808080]as when the FIXED CUP is on the driveside of an Italian or French threaded BB[/COLOR]), there is nothing to prevent the cup from unthreading unless something like
Loctite is added to the threads OR if the cup was torqued on with what I would describe as
excessive force.
FWIW & FYI. I guess that I was a little slow to adapt to cartridge BBs because they are usually not serviceable OR they are not as easily serviced AND the actual Ball Bearings in a cartridge are necessarily of a (slightly) smaller diameter ...
So, I Initially ponied up for the earlier iterations of the Dura Ace Octalink BBs because they were theoretically serviceable ...
But, the Ultegra ([COLOR= #ff8c00]cartridge-type[/COLOR]) Octalink BB convinced me that cartridge BBs are "okay" ... they are a little tight when new due to the auxiliary seals, but that loosens up with time ... so, I got over my prejudice against cartridge BBs.
Having said THAT, I recommend that if you think that you want to use a cartridge BB, then you need to carefully measure your current BB spindle's length & you need to know if it is
ISO ([COLOR= #808080]most Eurpean cranks are ISO, but there are always exceptions[/COLOR]) or
JIS ([COLOR= #808080]most Japanese cranks EXCEPT FOR Sugino & Suntour are JIS -- someone has previously declared that Suntour cranks are JIS, but I disagree[/COLOR]) OR opt for a
new BB & Crankset combination.