Is a new Shimano BB-UN300 as good as the UN50/70?

Peachy!

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Just pondering my next BB purchase, so anyone out there tried Shimano's UN300?
They're cheaper than used UN50's & 70's & obviously a lot cheaper than NOS!
So if it's not a catalogue correct build, do the compare favourably?
 
When used to un71/72 its hard to trust anything else.
Ask for a used, but tight n smooth un72.
Or look for stronglight jp 400.
Fsa power pro aint too bad.

If un300 is anything like un 55, they can keep it!
 
When used to un71/72 its hard to trust anything else.
Ask for a used, but tight n smooth un72.
Or look for stronglight jp 400.
Fsa power pro aint too bad.

If un300 is anything like un 55, they can keep it!
Yeah I think I’ll be using the 55 as cheap stop gap, and will keep my eye out for a good used 71
 
Funny thing about timing... Just went to my parts guy today and the subject of BB's came up.
IMG_20220513_150621750.jpg
Deore DX BB still in the box, and at least 5 nos UN55s...
By the way, that STI cassette on the left is no longer nos...;)
 
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