one of my neighbours has an old bmx and asked me if i want to buy it,ive looked at it and have no idea what make model it is its a chrome colour frame with a serial number stamped down the back of the seat tube NN3124018 has v handlebars on it sr stem has looptail rear the gusset has a hole same as the raleigh bmx but also a smaller hole nearer the head tube red mx brake to the rear black mag wheels on it not sky way has the rounded spokes theres nothing stamped on the brake bridge i would be grateful if anyone could give me any more advice on the bike please the neighbour wont take a penny less than £50 for it,im undecided wether to purchase or not thanks in advance for any help