. You did not buy it to make a quick profit, you’ve owned it , ridden it, improved it, and for what ever reason , are now selling it. Personally , I would take advantage of the current situation, the fact that HP won’t be selling any bikes in uk for a good while, summers coming , and there is a bit of a new ‘bent buzz I feel. Say you paid £500 ( was this the black one from Scotland? Whilst searching for mine I came across the old advert, and it was VERYcheap , but this was the advertised price, not a special, personal , deal) and it’s in reasonable nick, then on a forum such as this, I would say £700 would be reasonable,and a stonking bargain, as you’ve maintained/ improved it. But on EBay you might get more, it’s a open market. I think to put on forum for £900 would be a bit strong, but up to you. On eBay recently, an ‘Action bent’ bike went for £568 needing tlc, 2 days later it was back with pumped up tyres and a rack bag , for £1100, now £950, not sold. Don’t feel guilty, SM’s are excellent bikes, I ride mine, then ride my upwrong, and can’t understand why folks would be so uncomfortable, but they don’t suit all situations, and not always suitable as a ‘go to ‘ bike, so tend to get put in the attic! Don’t they ! 😊. When looking for one I was keen on one in Leeds for £900 on gumtree, haggled them down to £700 , but backed out. Soon after it was sold, only to reappear on e bag some 4 months later for £1200 (GTE) , the new owner had genuinely bought it, used it, and didn’t get on, and also didn’t complain about getting a wee bit more money.