Well the Lambretta cush drive spring has arrived and fitting it up you can see why AOMCC singles expert Peter said that it wouldn't fit with the '26-'27 pattern shock absorber, which is what I have here. There is no way that you can get the nuts on to start this compressing the spring.
Fortunately, the 1930 pattern shock absorber is available from Karol Burger of the Slovak Ariel Klub.
Even more fortunate is the fact that Karol stocks two types of sprocket, one with 19 teeth and one with 23 teeth. What I have here is a '26-'27 19 tooth engine sprocket which is obviously for sidecar use:
We know from experience with both the Huntmaster and the Square Four that bikes of this era are usually low geared (even when specified for solo use) so we do not want to compromise our budget and our riding experience by buying the wrong sprocket. This makes me feel a lot better about having the wrong crankshaft shock absorber!
We won't do anything else in this area until we have the new bits from the Slovak Klub.
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