TOP PERFORMANCES RACING CRANKSHAFT 44MM MINARELLI AM6
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Top Performances Crankshaft "Racing" Minarelli AM6 with 44mm stroke, also part of the 85cc cast iron and 86cc aluminium tuning kit by Top Performances.
As it has a longer 44mm stroke, it has to be combined with a 44mm stroke cylinder. Developed for Top Performances cylinders, but it can also be used with other cylinders with 44mm stroke. The connecting rod is 85mm long (= original length).