http://www.vintagebike.co.uk/pictures/1963-harley-davidson-aermacchi-ala-doro/?utm_source=rss&utm_medium=rss&utm_campaign=1963-harley-davidson-aermacchi-ala-doro Thu, 23 Mar 2023 18:54:44 +0000 hourly 1 http://www.vintagebike.co.uk/pictures/1963-harley-davidson-aermacchi-ala-doro/#comment-8947 Fri, 25 Mar 2016 13:45:01 +0000 http://www.vintagebike.co.uk/1963-harley-davidson-aermacchi-ala-doro/#comment-8947 Up to & including 1962 production racers were 4 speed, from 1963 on they had 5 gears
Could be very fragile, i.e con-rods breaking, cured later with a different design / maker.
wire would pull out of condenser, it was a little too short & therefore tight & with a little vibration, that was it – stop.
I know because I suffered a good number of breakdowns in both 62 & 63, sometimes when leading a race

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