Old 03-14-21, 03:54 PM
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I measured the spindle length and compared it to the tange unit. (Same length). I surfed around for a while attempting to get spec info on thd original unit but shimano sealed is all i could find. I've worked on old French road bikes, old cottered crank eng roadsters, tons of bmx bikes in my youth with 3pc and 1 pc units, many 90s mtbs (steel and aluminum) many 80s/90s japanese road bikes in steel... and have not had this issue. Just curious if others have had this issue. I will try to dig up some more details. Seems like the tange cup/sleeve is the issue.

new unit tange bc 1.37 x 24t
68 x 110.5

number on bottom of bb shell
174HA0284 (1994 marin palisades model)

I pulled the old unit, cleaned it up and the only marking on the plastic cup says the same thing 1.37 x 24t.

The tange unit worked well with a former 97 khs summit mtb 110.5 x 66 1.37 x 24 with no issue.

Last edited by schiavonec; 03-14-21 at 04:54 PM.
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