In August 1987, Mick Wilkinson of Hamilton Pine Rivers Wheelers, writing in the Veteran Time Trial Association magazine, challenged any cycling club in Britain to take them on in a 25 miles time trial against the clock. Alan Osborne, General Secretary of the Redbridge Cycling Club was persuaded by his wife to take up this "Challenge" - and he did. The rest is history...

A fantastic history of the Challenge 25 is on Redbridge Site