Special front sprocket sleeve to convert 3 speed J Range + Luna Line Lambretta models (Lui 50 + J50 + Cento + J125) to 4 or Vega5 5-speed!

This sleeve is a different height to the similar sleeve M350 (item number 7677058). The reason for this is that this sleeve is needed if you intend to take an engine casing that was originally 3-speed, and then convert it to 4 or 5 speed. This special sleeve enables you to get the right chain alignment height between the front sprocket and the clutch crownwheel bell. Used in conjunction with the 3-speed type oil thrower washer (item number 7677056).
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OEM numbers (for comparison purposes only)
Casa Lambretta:
X813
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