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Hi guys - I don't have any info on 77 Dommies but my ES2 (1955) is fitted with one their gearboxes (GB8 1591). Can anyone tell me the top gear ratio for an early fifties Dommie 77 gearbox? Cheers George
Hi George No expert, but I…
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Excellent! Many thanks Cha…
Excellent! Many thanks Charles. Just checking whether this why it is not as lively as I recall! George
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After a bit more sleuthing…
After a bit more sleuthing I find that the g/box I have is possibly early 60's. My apols for the slip but I'm not clued up on Model 77's. Thansk for your help. G
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The attachment shows the g…
The attachment shows the gearbox data for a model 77. Plus some later bikes.Attachments
data-page-4-jpg
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Hi George
No expert, but I can quote Mr Bacon.... who seems to know a thing or two!
'..early fifties Dommie 77' ?? '.... in autumn of 1956 it was joined by another twin of the same size... the model 77'
According to his data it ran for a couple of years or so, gearbox top gear ratio (overall) waseither 5.0:1 for sidecar use, 4.53:1 for solo.