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cdhpower2012 has been registered on Ebay. We are the only brand owner. We did not authorize any third party to use our pictures or brand.Please recognize cdhpower brand. Key Product Features - CDHPOWER-G2 Racing Reed Valve Kit -Suitable for 40mm and 32mm Intake - 2 in1 - 66CC/80CC Gas Motorized Bicycle；- Length of neck:1.65inch max and 1.06 inch mini;- Inner and Out Dia of neck:0.63inch and 0.75inch- Carbon fiber petals; Product description G2 Racing Reed Valve Kit -Suitable for 40mm and 32mm Intake - 2 in1 - 66CC/80CC Gas Motorized Bicycle; Material:carbon fiber; suitable for 40mm intake and 32mm intake; better for 40mm intake; G2 Reed Valve CNC Intake 19MM/21MM/23MMInner and Out Dia of neck: 19MM:14mm and 19mm 21MM:16mm and 21mm 23MM:18mm and 23mmThickness of intake: 5mm Package including:1 set G2 reed valve(Including 19mm intake)1 pc G2 Reed Valve CNC Intake 19mm or 21mm or 23mm CDHpower G2 Reed Valve cnc IntakeCDHpower G2 Reed Intake of CDHpower G2 Reed Valve Kit -19mmThickness of intake: 5mmInner and Out Dia of neck: 14mm and 19mmCDHpower G2 Reed Intake of CDHpower G2 Reed Valve Kit -21mmThickness of intake: 5mmInner and Out Dia of neck: 16mm and 21mmCDHpower G2 Reed Intake of CDHpower G2 Reed Valve Kit -23mmThickness of intake: 5mmInner and Out Dia of neck: 18mm and 23mm Shipping:Shipping is FREE to all addresses other than Alaska/Hawaii,APO/PO boxes .We ship FAST - We will ship the product on the second business day.We work with all major shipping companies (UPS, USPS, FedEx etc.) and provide TRACKING NUMBER to ALL orders.Please ensure that the address is verified and correct during checkout.We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. PaymentWe accept payment via PayPal only.We will ship the item as soon as payment is cleared on PayPal. ReturnsWe stand behind our products. We offer a 30 Days Return Policy on items which you are not completely satisfied with.Returns are gladly accepted if it is in the original condition, including all manuals and accessories.You have the option for a full refund or an exchange of the item (subjected to stock availability).When sending in a return, please note that it can take up to 7 business days for the return to be processed. FEEDBACK:We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.It is impossible to address issues if we do not know about them! CONTACT_US:For helping with your order or if you have any questions regarding our products, please contact us through eBay's internal message system. All messages are answered within 24-48 hours. We will do our best to resolve the issue.Looking forward hearing from you, CDHPOWER Support Team. Thank you for looking, if you have any questions, feel free to ask and I will do my best to get back to you promptly!Products usually shipped on the second business day and you will receive message of tracking ID.CDHPOWER is registered officially in year 2012 and started business in year 2008, we can provide engine kits, high performance spare parts of engine, motorized bicycle and spare parts of bike.