I’ve serviced it as per the book and it’s buttery smooth. Unfortunately it won’t stay down though.

Does anyone service them? I see that Superstar no longer sell them?

First gen lever under the saddle if it helps.

Cheers

Jungle products are the new distributor, try contacting them.

Mine stopped staying down. Think I got a quote (was out of warranty) from superstar to fix that bit, but because I also asked how much all the wearing parts would cost too because the slop was ridiculous by that point), the total figure put me off restoring the post. Its sat in my scrap spares box still. Put the money well on the way toward an i950 150mm. So far its lasting better though the i900 I had was the very first gen, with the poor sealing