WITH some seven World Championships between them, Ulsterman Joey Dunlop and Londoner Barry Sheene are remembered as two of the greatest riders ever to have sat astride a motorcycle.

Divided by temperament but united by talent, each was a legendary figure within the sport and retains a legion of fans to this day.

Dating from the start of Dunlop's works career and the end of Sheene's, H&H will be putting three special bikes under the hammer at The Royal Hall, Harrogate on Wednesday, April 16.

Joey Dunlop not only achieved the fabled 'triple' in 1985 - by winning that year's Junior, Senior and F1 races - but he repeated this remarkable feat in 1988 and 2000.

A highly versatile racer, characterised by a super-smooth riding style which allowed him to excel on bikes of any engine size, Dunlop also topped the podium at 24 Ulster Grands Prix and 13 North West 200 meetings, not to mention capturing the F1 World Championship title an incredible five times.

One of the bikes which helped Dunlop to achieve F1 supremacy, the 1982 Honda RS1000 being offered for sale, has been authenticated by his contemporary works mechanic, George Rowlingson.

Specially-built for Dunlop by the newly-formed Honda Racing Corporation and supplied via Honda Britain, the bike is a veritable work of art. Based around a lightweight steel frame and powered by a titanium-filled short-stroke 998cc four-cylinder engine, it is finished in period correct livery, right down to the appropriate sponsorship decals.

A Honda stalwart, the part-time publican enjoyed a special relationship with the works from 1982 right up until his untimely death in 2000. The RS1000 carries a saleroom estimate of £90,000 - £100,000.

Unlike Dunlop, Barry Sheene had no particular love for the 37-mile-long Isle of Man TT course, once commenting that: "This is not racing, it's a suicide mission".

Plain talking and hard living - at one stage his race helmet famously carried a drill hole, so that he could smoke on the grid - Sheene's public profile was more in keeping with that of a rock star than a motorcycle racer. Indeed, his promised presence at a race meeting was reputedly capable of generating an extra 10,000 ticket sales Dating from the last two years of his 500cc World Championship career, the 1983 Suzuki XR40 and 1984 Suzuki XR45 offered for sale are both finished in their correct blue-over-white livery and adorned with Sheene's 'Lucky Number 7'.

Beautifully engineered, each is a reminder of that golden two-stroke GP500 era, in which Sheene played such an important role. The older of the two bikes carries a saleroom estimate of £60,000 - £70,000; the younger one - which is reputedly the last works Suzuki which Sheene rode - is guided at £70,000 - £80,000.

Although, unable to boast a rider of the stature of Dunlop or Sheene, the fourth ex-works racing motorcycle included in the 16 April sale, a 1979 Honda RS1000 Endurance, did manage to win the hugely important 1979 Suzuka 8-hour race and led most of the 1979 Bol d'Or. Part of a private collection for many years and adorned with a host of bespoke RCB parts, it has been estimated at £80,000 - £90,000.

Those with shallower pockets, but an appreciation of race-bred engineering could well be tempted by the Bennett Engineering-built Benelli four-cylinder replica, Triumph Trident or two Suzuki RG500 bikes which are also on offer.