Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 8 Post(s)
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AC-H was the BB sold with Daytona, (renamed Centaur) groups in 2000 and the next few years. The 1mm difference form 110 to 111 is meaningless. The AC-S BB sold with Mirage groups was the same basic cartridge, but with a heavier spindle and cups. I suspect that the H & S stood for hollow and solid, but that's just an educated guess. Either will work for your crankset, the only difference being that the AC-S will keep your bike from flying off in a tornado.
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