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The NCY QMB139 upgrade kit for your 50cc 4-stroke is finally here! This kit is specifically designed for 88cc big bore engines and increases your gear ratio by 30%. This is the mother of all upgrades for 50cc qmb139 scooters. Only effective if you have a full 88cc kit with a big valve head and stroker crank.
The NCY QMB139 upgrade kit for your 50cc 4-stroke is finally here! This kit is specifically designed for 88cc big bore engines and increases your gear ratio by 30%. This is the mother of all upgraded equipment for 50cc qmb139 scooters. Only effective if you have a complete 88cc kit with a big valve head and stroker crank.
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Shipping is done no later than 24 hours after placing the order. We ship with Purolator 1-2 business days. The PRODUCTS are shipped to the delivery address(es) that the CUSTOMER has indicated during the ordering process. If one or more parts are not available, we will send them to you upon receipt of the missing parts.
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We offer free shipping for all orders over $300.
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