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SENDERPICK BEST GY6 50CC 100CC CYLINDER BIG BORE KIT BBK 50MM ID 1P39QMB 139QMB 64MM VALVES

Brand: SENDERPICK
Specification: Material: Metal Head:  64mm valves Cylinder Size :  50mm ID Diamater: Intake Valve Diameter: 18mm Exhaust Valve Diameter: 16mm Performance Racing CDI (AC Fired):70mmx30mmx37mm Performance Racing Coil length:360mm Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm) Please Compare The Scooter Kit With Your Original One Before Purchasing! Fits (For the reference): ✅For 139QMB & 1P39QMB /GY6 4 Stroke Chinese Scooters NOTE: Installation Manual Is NOT Included Professional Installation Is Highly Recommended Package includes: · 50mm Big Bore Cylinder Kit With Assembled Head, · Performance Racing CDI (AC Fired), · Performance Racing Coil · Rollers · Rocker Arms · Oil Pump & Drive Gear · Intake & Exhaust Studs & Complete Gasket Set
BEST GY6 50CC 100CC CYLINDER BIG BORE KIT BBK 50MM ID 1P39QMB 139QMB 64MM VALVES
Welcom to yanqiuwangluo66
Fits for GY6  Scooter Moped 139QMB 1P39QMB 50mm Big Bore Cylinder Piston Kit
 
SKU: AC-YCZYQ-5112
 
Features:
⭐100% brand new and high quality,Durable.
⭐It could correctly replace the original quality part.
⭐This Performance Racing Parts kit can make full use of your 48cc,  scooters.
Specification:
  • Material: Metal
  • Head: 64mm valves
  • Cylinder Size: 50mm ID
  • Intake Valve Diameter: 18mm
  • Exhaust Valve Diameter: 16mm
  • Performance Racing CDI (AC Fired): 70mmx30mmx37mm
  • Performance Racing Coil length: 360mm
Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm)
Please Compare The Scooter Kit With Your Original One Before Purchasing!
Fits (For the reference):
✅For 139QMB & 1P39QMB /GY6 4 Stroke Chinese Scooters
NOTE:
Installation Manual Is NOT Included
Professional Installation Is Highly Recommended
Package includes:
  • 50mm Big Bore Cylinder Kit With Assembled Head,
  • Performance Racing CDI (AC Fired),
  • Performance Racing Coil
  • Rollers
  • Rocker Arms
  • Oil Pump & Drive Gear
  • Intake & Exhaust Studs & Complete Gasket Set
 
We accept ebay payment 。
Fees such as import duties, taxes are not included in the item price or shipping costs. These charges are the buyer's responsibility.
Shipping:
 
2-9 working days to: USA
 
    •  
    • We maintain high standards of excellence and strive for hundred percent customer satisfaction. Feedback is very important to us. We hope that you contact us immediately before you give neutral or negative feedback, so that we can address your concerns. It is impossible to address issues if we do not know about them!
 
  •  
Your satisfaction is our ultimate goal. We work hard to earn your trust and future business. Our certified technicians have tested each item before shipping. The unit comes with 1 year limited warranty on all manufacturing defects.
a) If you receive a defective item, you may return it or ask for a discount. Please contact us within 14 days after you receive the package.
b) What you returned must be intact and in its original packaging as re? u. Customer is responsible for shipping costs of the returned item.
c) We will cover the cost of shipping back t with the shipping rate indicated in the registration page. We will send you a new unit or refund the full payment you paid.
Thank you.
Business Hour
Business Hour: Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)
Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.
Please contact us with ebay message.
Please feel free to contact us if you have any questions.
Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)
Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.
Please contact us with ebay message.
Please feel free to contact us if you have any questions.
Brand: SENDERPICK
Isin: INTXL95CFWKC

$146.89

  • Free shipping in US
  • Arrives:

  • Free 30-Day returns

In Stock

Sold by , Fulfilled by IBSPOT
Ships from USA

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SENDERPICK BEST GY6 50CC 100CC CYLINDER BIG BORE KIT BBK 50MM ID 1P39QMB 139QMB 64MM VALVES

SENDERPICK BEST GY6 50CC 100CC CYLINDER BIG BORE KIT BBK 50MM ID 1P39QMB 139Q...

$146.89

Specification: Material: Metal Head:  64mm valves Cylinder Size :  50mm ID Diamater: Intake Valve Diameter: 18mm Exhaust Valve Diameter: 16mm Performance Racing CDI (AC Fired):70mmx30mmx37mm Performance Racing Coil length:360mm Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm) Please Compare The Scooter Kit With Your Original One Before Purchasing! Fits (For the reference): ✅For 139QMB & 1P39QMB /GY6 4 Stroke Chinese Scooters NOTE: Installation Manual Is NOT Included Professional Installation Is Highly Recommended Package includes: · 50mm Big Bore Cylinder Kit With Assembled Head, · Performance Racing CDI (AC Fired), · Performance Racing Coil · Rollers · Rocker Arms · Oil Pump & Drive Gear · Intake & Exhaust Studs & Complete Gasket Set
BEST GY6 50CC 100CC CYLINDER BIG BORE KIT BBK 50MM ID 1P39QMB 139QMB 64MM VALVES
Welcom to yanqiuwangluo66
Fits for GY6  Scooter Moped 139QMB 1P39QMB 50mm Big Bore Cylinder Piston Kit
 
SKU: AC-YCZYQ-5112
 
Features:
⭐100% brand new and high quality,Durable.
⭐It could correctly replace the original quality part.
⭐This Performance Racing Parts kit can make full use of your 48cc,  scooters.
Specification:
  • Material: Metal
  • Head: 64mm valves
  • Cylinder Size: 50mm ID
  • Intake Valve Diameter: 18mm
  • Exhaust Valve Diameter: 16mm
  • Performance Racing CDI (AC Fired): 70mmx30mmx37mm
  • Performance Racing Coil length: 360mm
Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm)
Please Compare The Scooter Kit With Your Original One Before Purchasing!
Fits (For the reference):
✅For 139QMB & 1P39QMB /GY6 4 Stroke Chinese Scooters
NOTE:
Installation Manual Is NOT Included
Professional Installation Is Highly Recommended
Package includes:
  • 50mm Big Bore Cylinder Kit With Assembled Head,
  • Performance Racing CDI (AC Fired),
  • Performance Racing Coil
  • Rollers
  • Rocker Arms
  • Oil Pump & Drive Gear
  • Intake & Exhaust Studs & Complete Gasket Set
 
We accept ebay payment 。
Fees such as import duties, taxes are not included in the item price or shipping costs. These charges are the buyer's responsibility.
Shipping:
 
2-9 working days to: USA
 
    •  
    • We maintain high standards of excellence and strive for hundred percent customer satisfaction. Feedback is very important to us. We hope that you contact us immediately before you give neutral or negative feedback, so that we can address your concerns. It is impossible to address issues if we do not know about them!
 
  •  
Your satisfaction is our ultimate goal. We work hard to earn your trust and future business. Our certified technicians have tested each item before shipping. The unit comes with 1 year limited warranty on all manufacturing defects.
a) If you receive a defective item, you may return it or ask for a discount. Please contact us within 14 days after you receive the package.
b) What you returned must be intact and in its original packaging as re? u. Customer is responsible for shipping costs of the returned item.
c) We will cover the cost of shipping back t with the shipping rate indicated in the registration page. We will send you a new unit or refund the full payment you paid.
Thank you.
Business Hour
Business Hour: Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)
Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.
Please contact us with ebay message.
Please feel free to contact us if you have any questions.
Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)
Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.
Please contact us with ebay message.
Please feel free to contact us if you have any questions.
PushAuction
  • Features: Fast shipping from US Warehouse
  • Brand ( ): SENDERPICK
  • Features1:: High quality With warranty!
  • * Feature *: Nice and Practical, High Quality Packaging
  • Warranty: Three years
  • Characteristic: Convenient Use,Easy Operation,Easy installation
  • Custom Bundle: No
  • Compatible Model: GY6 4 Stroke
  • Transportation does not include: canarias
  • UPC: Does not apply
  • MPN ( MPN ): n/a
  • Modified Item: No
  • Feature *: Convenient UseUnique Appearancereliable quality
  • Manufacturer Part Number: Does Not Apply
  • Type: Cylinder & Cylinder Heads
  • Material: Metal
  • Head: 64mm valves
  • Cylinder: 50mm ID
  • Fitment 1: Chinese Scooter GY6 Big Bore Kit 100cc 50mm Bore
  • Fitment 2: 139QMB & 1P39QMB Chinese Scooters
  • Installation Instructions: Not included
  • Brand: SENDERPICK
  • MPN: Does not apply

 

Processing Time

  • We process and ship orders Monday through Friday, excluding holidays.
  • Most orders are processed within 1–3 business days, depending on product availability.
  • Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.

Shipping Coverage

We currently ship to addresses within the United States only.

Products may ship from:

  • Our U.S. warehouses, or
  • Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).

Each product page clearly displays the “Ships From” location before checkout.


Shipping Methods & Estimated Delivery

 

Shipping Method Estimated Delivery Cost
Free Shipping (US) 5–10 business days Free, available on eligible items
Standard Shipping (US to US by Item) 5–10 business days $6.50 for the first item, $3.00 each additional
Standard Shipping (From US Warehouse by Weight) 3–7 business days Starts at $6.50, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb.
Extended Delivery (Ships from Overseas Warehouse) 10–15 business days $14.50 for the first item, $4.00 each additional

Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.

Free Shipping

We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout. 


Carriers

We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.


Import Duties & Taxes

All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.


Tracking & Notifications

Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.

You can track your shipment anytime using the Track Your Order page on our website.


Order Changes & Cancellations

If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.

Contact: support@ibspot.com


Item Not Received

If your tracking number shows “Delivered” but you haven’t received your package:

  1. Check with your local USPS or UPS office.
  2. Confirm that the shipping address provided was correct.
  3. If the issue remains unresolved, contact support@ibspot.com for assistance.

Damaged or Lost Parcels

If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.


Customer Support

For any questions about shipping, tracking, or delivery, our customer support team is here to help.

Email: support@ibspot.com

We’re always happy to help.

Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.


Order Cancellation Policy

Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.

How to Request a Cancellation

You can contact us through:

Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.


Return Policy

We accept returns for most items within 30 days of delivery for a full refund.

To be eligible for a return:

  • The item must be unused, in the same condition as received, and in its original packaging.

  • A tracking number must be provided to confirm the return shipment.

Non-Returnable Items

Certain products cannot be returned, including:

  • Perishable goods (for example, food, flowers, newspapers, magazines)

  • Intimate or sanitary goods

  • Hazardous materials or flammable liquids/gases

  • Gift cards

  • Downloadable software

  • Some health and personal care items

Partial Refunds (If Applicable)

Partial refunds may be granted in specific situations, such as:

  • Books with obvious signs of use

  • Opened CDs, DVDs, software, or vinyl records

  • Items not in their original condition, damaged, or missing parts not due to our error

  • Items returned more than 30 days after delivery


How to Return an Item

To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.


Shipping Cost for Returns

Please contact us before returning any item.
We will provide a free return shipping label.

If a return is sent back without prior contact or without our provided label, we cannot be held responsible for return shipping costs.

For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.


Refund Processing

Once your return is received and inspected:

  • In-store returns are refunded to the original form of payment or issued as a gift card.

  • Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.

Please allow:

  • 5–7 business days for the return to reach our Returns Center.

  • An additional 3–10 business days for your bank to post the refund to your account.


Damages, Issues & Claims

Please inspect your order immediately upon receipt.
If you receive a defective, damaged, or incorrect item, contact us right away at support@ibspot.com.
We’ll evaluate the issue promptly and make it right.

Product Claims

Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.


Exchanges

We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.


Return Address

IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States


Customer Support

Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.

Email: support@ibspot.com
Contact Form: Contact Us page

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