Originally Posted by
kjaioqhbkqb
.......The black spindle says 3R Boron J-6 and is longer on the drive side to accommodate the three chain rings I think.......
3R is the size code-
129mm long w/42 & 35mm offsets. (aka
really long)
The "B" dimension in John's pic is 52mm.
Possibly the N3U will still be long enough for your cranks to clear the stays AND the FDER can move in a bit more.
Remember, you can swap ends.
You MUST keep to a "3" series. 5 or 7 or?? will not work. The "B" dimension is different.
Husky Bicycles: Bottom Bracket Parts