Seller reckons he's had this since he was 17, and he's probably right. However he's not being honest about what he's got. It's an RSP 250 with the decals removed being advertised as a 550. The gusset under the headstock, the all blue rear triangle and the square chainstays all being features of the 250 and not the 550.
https://www.facebook.com/groups/raleighdynatechmtraxfans/permalink/3427853993984939/
https://www.facebook.com/groups/raleighdynatechmtraxfans/permalink/3427853993984939/