Product Description Package include: 6sets chain master linkFit 50cc 60cc 66cc 80cc 2 Cycle Motorized Bicycle BikeNet weight:40gDear friend, thank you for choosing our store. Please check the product information, especially the size and models before placing the order. For bulk buying, please contact us by email for more favorable discount. For any questions about products, tracking information or after-sales problems, please DON'T hesitate to contact us by email and we willl give you a quick and satisfactory answer as soon as possible. (There may be a delay in replying to emails during weekends and holidays. Thanks for your understanding.) Any suggestions that can help us improve will be much appreciated. For any questions about products, tracking information or after-sales problems, please DON'T hesitate to contact us by email and we willl give you a quick and satisfactory answer as soon as possible. (There may be a delay in replying to emails during weekends and holidays. Thanks for your understanding.) Any suggestions that can help us improve will be much appreciated. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.