Must of done an upgrade , a guy in Poole has loads of parts , i'll try and find his website
Some info from the net >
The Bickerton, also called the Bickerton Portable, was a portable aluminium folding bicycle designed by Harry Bickerton and manufactured in the UK between 1971 and 1991. It was the first genuinely portable bicycle - at that time folding bicycles tended to be 20" step-through frames with a simple hinge, such as the folding variant of the Raleigh Twenty. The bicycle was made entirely of aluminium profiles. Its riding properties were poor, partly as the aluminium parts could never be properly locked in place. In its weight and folded package size it broke new ground[1] [2] and it is cited by Andrew Ritchie as one of his inspirations in creating the highly successful Brompton bicycle.
The bike was heavily promoted on TV with the slogan "go bag a Bickerton", a reference to the dual-purpose bag, which could be used to hold the bike or as a pannier), but timing was poor, coinciding with a steep decline in cycling in the UK.
The brand has been relaunched for the 40th anniversary at Munich Bike show in Germany. The new bikes combine the old brand, with a new design. Mark Bickerton, son of Harry, who ran the factory making the first generation Bickerton bikes, is involved with product development, marketing and sales.
