Weight just right for Cup favourite Puissance De Lune. Photo: Vince Caligiuri Melbourne Cup favourite Puissance De Lune has been given the ideal impost - 54.5 kilograms - to triumph in the Melbourne Cup, with the release of weights on Tuesday. The last three winners of Australia's greatest race - Americain, Dunaden and Green Moon - carried that weight to victory. Dunaden, the 2011 winner, will have to be the equal of Cup legends Makybe Diva and Think Big - the only two horses to have carried 58 kilos or more to win the race in the metric era - if he is to triumph under his burden of 58.5kg. And the heavily hyped Hawkspur (53.5kg) from the Chris Waller stable in Sydney, will have to make history and become the first galloper to win the Cup after scoring in the Queensland Derby. Three-time Cup winner Glen Boss, the rider of Puissance De Lune, is confident the Irish-bred grey can win the Cup with that weight. "He's got a bit more than I thought, but I have got a massive respect for [Racing Victoria's] Greg Carpenter and his handicapping," he said. He obviously has a very, very healthy respect for my horse. I thought he would get 53.5. I was hoping he would get 53.5. I expected 54. I have to cop that and hope he lives up to his expectations ... I think the horses that are close around him [in the handicaps] he can beat. When he gets to his proper distance - a mile-and-a-half [2400 metres] and beyond - you know what he's capable of doing. I think he's capable of doing it. Carpenter said a handful of contenders had given him plenty of headaches as he tried to balance their European form with their Australian efforts, particularly horses such as Sea Moon (56.5kg) and evergreen 2011 runner-up Red Cadeaux (56.5kg). Also high up in the weights is last year's super three-year-old Its A Dundeel (56kg) - the same weight So You Think carried when third as a four-year-old in 2010. Last year's winner, Green Moon, has been given 57.5kg - 3kg more than he carried to victory. Fiorente, the 2012 runner-up, has 55kg - 1.5kg more than last year. The Australian-owned Dandino, who won the American StLeger at his latest start, has been handicapped on 54.5kg. He is raced in similar interests as last year's third placegetter, Jakkalberry. Mount Athos, the Luca Cumani representative who was an unlucky fifth in 2012, has been allocated the same weight, 54kg, while Australian Cup winner Super Cool has 54.5kg. Aidan O'Brien's three-year-old Leading Light, who won the English St Leger last weekend, has 52.5kg, but is an unlikely runner.