Size:outer diameter of drum:115mm/4.53", inner diameter of drum:107mm/4.21", inner diameter of hole:22mm/0.86". Please check the size of the product before purchasing.
Replacement for GY6 49cc 50cc 80cc 139QMB scooter ATV go kart engine.
Improve power transmission efficiency and reduce energy loss, making acceleration faster and smoother.
Whether for daily riding or racing, it can make your vehicle perform well and provide a better driving experience.
Durable and easy to maintain, in most cases no specialized tools are needed to complete the replacement, saving time and cost.
