I have a 1986 Puch Maxi with a single speed engine. I am trying to buy seals and bearings but am not sure if mine is a needs 3 seals the same (17/40/7) or 2 of these and a (22/40/7).
as my bike is a 1986 I'm assuming its the new model and i should go for the first option. Is there anyway to tell from the engine number.
Also are there any other differences i.e. bearing sizes?