UKH

I have a reasonably expensive bike I want to move on (worth around £1k) - does anyone on here know the best way of going about it?

Pinkbike or singletrackworld would be good places to start.

+1 Pinkbike

But you may struggle as a new user with no back history.

And its not without a level of hassle.

.... try and sell on UKC first!

Facebook marketplace and Pinkbike are your best bets. The 2 bikes I’ve listed on both (both over £1k) got sold through fb though. Be prepared for time wasters with either unfortunately.

Facebook Marketplace is the place.

I sold a decent Enduro bike last year and had 500 enquiries through FB in 24 hours - the guy who bought it made an offer within 10 minutes of it being posted.  

I had one enquiry from Pinkbike in the same period.