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The NCY QMB139 upgrade kit for your 50cc 4-stroke is finally here! This kit is specifically designed for big bore engines and increases your gear ratio by 26%. This will allow you to maximize your big bore kit by increasing top speed and a more usable RPM range. You won't see much, if any, performance improvement if you install these on a stock top end. For experienced tuners only.
The NCY QMB139 Upgrade Kit for your 50cc 4-stroke is finally here! This kit is specifically designed for large bore engines and increases your gear ratio by 26%. This will allow you to maximize your large bore kit by increasing top speed and a more usable rev range. You won't see much, if any, improvement in performance if you install them on an original high-end. For experienced tuners only.
If you paid by PayPal or credit card, the money will be debited from your account on the day your order ships. Bank transfer, your order is taken care of upon receipt of payment. If your order has not yet been dispatched, we are making every effort to process your order as quickly as possible.
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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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