Special bolt + wavy washer (Item: 155) for front crankshaft drive sprocket for all 3-speed Lambretta J50 + Lui 50cc 3 speed models only (i.e. not 75cc models). The set consists of both the bolt and the washer.
The front sprocket and 75cc parts shown in the pics are for reference only, and are not included in the purchase price.
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