Identify my seatpost & help please!

2manyoranges

Senior Retro Guru
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I'm only going to be a bit helpful, and then not much. I don't think it's USE. They have a rubber concertina, a smooth collar (this one is far chunkier and knurled), and as you say, USE used little bobbly elastomers. I'll have a think....one possibility is an early ZOOM copy of USE.
 
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FluffyChicken

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The top part is USE, the elastomer could have been replaced for a straight spring.

I don't k ow much about them and half of it always seem to have bellows covering it.
 

Once A Hero

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I have NOS USE post here - which does have the knurled collar, also have another which doesn’t, so probably just a design change.
I’d agree that the spring is non-standard though, pretty sure the ones I have only have the elastomers.
Did you dismantle it? I.e. are you sure it’s supposed to go in there?
 

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2manyoranges

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Hmm a t that diameter maybe USE after all, if once a hero has one with a knurled collar - so the spring may indeed be after market.
 

Tommy79

Retro Newbie
I have NOS USE post here - which does have the knurled collar, also have another which doesn’t, so probably just a design change.
I’d agree that the spring is non-standard though, pretty sure the ones I have only have the elastomers.
Did you dismantle it? I.e. are you sure it’s supposed to go in there?
I took it apart and the spring came out pretty easy. I just can’t get it back in past the lip (1/2 way down to tube) so that I can re fit the cap! The spring sticks out approx 3cm 🤦‍♂️
 
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