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: 22 Post(s)
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There should be a large nut on the other side, and usually the bolt is keyed in the middle so it doesn't turn. Either way loosen the nut a few turns with wrench that fits or an adjustable adjusted for a good fit. If the bolt isn't keyed, you might have to hold it with a large Philips screwdriver but it's always easier to turn the nut rather than the bolt.
Loosening the nut relaxes the clamp and ti slides up off the pin with a bit of elbow grease. Often twisting as you lift helps. BTW, it's hard to remove the seat from this type of post off the bike, so put it back on and use the bike to hold the post as you remove the seat.
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