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: 53 Post(s)
Tagged: 1 Thread(s)
Quoted: 2022 Post(s)
Either is possible.
Your best bet is to first remove the left cup which has right hand threads either way. Then check it's thread with a caliper. It'll be 1.370, (34.8mm) or 36mm (1.41mm) for British (ISO) or Italian respectively. Knowing that will tell you which way to turn the right cup, British is left thread and removes clockwise, Italian is RH.
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