MANX Norton to moped: Ariel to Zundapp – a collection hidden away for three decades has emerged from the cobwebs to sell at auction with no reserve.

The Cooper Collection of motorcycles mothballed for 30 years will be auctioned by Bonhams on June 20 at their new premises at Kidlington, near Oxford, in association with the world famous VMCC Banbury Run.

The bikes range in estimates from £100 to £10,000 and will be sold without reserve.

For three decades the only sound disturbing the silence within the walls of the Coopers’ Warwickshire garage buildings was the rustle of web-spinning spiders amid the tanks and forks and over 70 motorcycles, for the most part locked away untouched since the 1970s.

Ben Walker, head of Bonhams’ motorcycle department, says: “The condition of this astonishing collection is as you would expect.

“It varies widely from ‘excellent’ to ‘project’, with every shade in between.

“What the collection will provide is a bike for almost every taste and pocket from a ‘field bike’ to be fixed or a rare Scorpion needing work, to an empty chassis to be re-engined, or a DOT or even a ‘Banana’ MZ or Raleigh ‘Runabout’ needing just re-commissioning.”

The Cooper brothers, Bob and Sam (both deceased), were well-known and very successful stalwarts of the West Midland trials and scrambles scene during the 1950s and ’60s.

As part of their joint careers, they ran their popular motorcycle shop, Cooper Bros about a mile from the A34 road, which dealt mainly in competition bikes.

Like so many enthusiasts, the Coopers put unusual bikes and partexchanges ‘on one side for later’ and many of these are still awaiting their attentions, 30 years on.

The collection is eclectic, going from Ariel – an ‘HT’ Trials machine next to a couple of Ariel ‘3’ mopeds – through to a nice Rickman- Zundapp, with a Norton collection of a 1954 Manx, a 500T Trials and a sidevalve 16H, and many other makes well-represented including a pre-war Coventry-Eagle and a splendid selection from Greeves with Silverstone racer, scramblers – or MX if you prefer – to their famous ‘Scottish’ trials bikes.

The majority are British or European in origin and there is also a large amount of spare parts and some memorabilia including three 1930s Isle of Man TT Replicas.

To consign a bike to this sale contact Ben Walker or James Stensel at Bonhams on 08700 273616.