1960 Norton Manx 30M

Lot details
Registration No: N/A
Frame No: R10M86401
cc: 500

The 1954 Manx established the design for the machine that would continue, with detail developments, to the end of the models production in 1962. The frame adopted a welded on sub-frame and the front brake became a twin leading shoe design.The engine dimensions were changed to 86 x 85.8mm for the 500cc version (76 x 76.85 for the 350cc). Larger valves and a shortened con-rod were employed in the engine whilst externally the cam drive tube was housed within the finning of a new cylinder head that was graced with revised fining. From 1955 the factory team used production based machines incorporating developments intended for the following seasons production models rather than "works specials" as had previously been the case. Whilst this may have been detrimental to the works riders at the highest levels of international competition it undoubtedly was of benefit to privateers at all levels, developments proven by the factory team were incorporated into the customer machines for the following season starting with the 1956 models.
The developments incorporated into the 1956 machines included a revised timing side bearing and extended primary drive guard, 1957 saw the introduction of a sleeved big end, a larger carburettor and subtle revisions to the cycle parts. The major change for 1958 centred on the transmission with the AMC gearbox being fitted and was followed in 1959 with detail revisions to the clutch and engine which benefited from further revisions for 1960 and 1961.
This example was owned by Mike Hoskisson of Bee-Bee Racing and ridden by Alistair Frame and Malcolm Lucas in the Manx Grand Prix. The 1957 specification engine using new, original, crankcases and a BTH magneto was the last one built by Ray Petty in 1985 and is installed in a 1960 frame.
A four speed AMC gearbox is employed which is described by the vendor as being in good condition, as is the black and silver paintwork, engine, electrics and cycle parts.