Manufacturer: Velocette
Model: MSS
Year: 1961
Displacement: 495 cc
Cylinder: 1
Engine type: 4-stroke / ohv
Bore / Stroke:
86
x
86 mm
Power: 27hp
@ 5000 rpm
Compression Ratio: 1 : 6.75
Weight: 170 kg
Top Speed: 130 km/h
Frame number: RS16212
Engine number: MSS 12907
The third of Velocette's overhead-valve, high-camshaft, single-cylinder designs. The MSS model was first produced in 1935, and was the third of the M-series of overhead-valve singles which included the MOV, MAC, Venom, and ultimately the Thruxton, all of which featured the high-camshaft layout. The first of these new models had been the 250cc MOV of 1933, which was joined for 1934 by a long-stroke 350cc version - the MAC. In creating the MSS, Veloce kept to the basic design, combining the MAC's 96mm stroke with a larger bore to create its new '500'. The MSS engine went into a new frame derived from that of the racing KTT. The model disappeared from Veloce Limited's range in 1948 while the company concentrated on the LE, reappearing in 1954 with a new swinging-arm frame and Hall Green's own telescopic front fork.
It has been restored a numbers of years ago and is equipped with a Smiths speedo and Amal carburetor.
This bike in well-kept condition and runs fine.