I believe the forum is set up such that you cannot post in bikes for sale or parts and accessories for sale without being a subscriber. Linking your items for sale on another web site within a forum post has been used on several occasions but for the sake of a £5 it is just not cricket. Andy
It has been free during my time. However it was massively abused by people just joining up to sell something then buggering off without contributing to the forum. So the charge was introduced to stop that and also it allowed us to make the forum advert free for subscribers, rather than relying on ads to pay the running costs.