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
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Not sure from the picture, but there appears to be a cosmetic cap or cork in the hole covering what is probably a hex socket bolt head.
Try to pop or pry the cork out, then you should find the stem bolt underneath. Loosen 4-4 turns, then tap down to free the wedge at the other end.
An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions”
- Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance