Premium Product Listing | March 2026

50mm Big Bore Cylinder Kit Fits GY6 100cc 4 Cycle Chinese Scooter 139QMB Upgrade

Product Description

Fitment:

GY6 100cc Chinese Scooter Engine

Package Include:

1 x 50mm Cylinder

1 x 13mm Piston

1 x Pin

2 x Circlips

2 x Gaskets

5 x Rings

Payment Methods

Paypal, Visa, and MasterCard are the accepted forms of payment.
Please use the eBay checkout system when paying for your order.
Immediate payment is required for all orders.

Shipping Information

Handling Time:

Items will be shipped out within 3 days after payment completion. Orders on weekends and holidays will be processed on the next business day.

Shipping Address:

Item(s) will be shipped to your authorized Paypal address, so please make sure of that before placing the order. We are not responsible for wrong or insufficient address.

Return Policy

Any direct return of purchased items will not be processed.
Change-of-mind return can only be accepted within 7 days after purchase.
All other returns can be accepted in 30 days.
We will closely examine the condition of the returned items and will not issue any refund/exchange before we make sure the items are in their original neat conditions.

Customer Service

Before leaving us neutral or negative feedback, please contact us. we will reply your email whitin 24-48 hours.
We will do our best to give you a satisfying solution.
Please don't open case via eBay before contact us.
Please don't open any return request before contact us.
We do our best to resolve any issue. Leaving negative feedback and low ratings doesn't get things solved. So please contact us and we will not let you down.
This item does not include a paper manual. If you have any questions during installation, feel free to contact us anytime.
Based in South EI Monte, California, US. offering high quality products, offer various types of Motocycle, Motorized, Chainsaw, Lawnm parts. You can be assured to buy!