Scooter Big Bore Performance Kit, Fits The QMB139/! PQmb139 GY6 Based 50cc Four Stroke Chinese Scooter Engines.(Note Exhaust brackets may have to be moved or tweaked for long case engine). This item is in the category "eBay Motors\Parts & Accessories\Motorcycle & Scooter Parts & Accessories\Other Motorcycle & Scooter Parts & Accessories". The seller is "scooter-parts1" and is located in this country: US. This item can be shipped worldwide.