Review on 🚀 Glixal ATMT1-008 Performance Big Bore Cylinder Kit GY6 80cc 47mm: Boost Your 139QMB ATV Scooter Moped Go Kart! by Shane Miller

Excellent value for money, I installed this kit today. I immediately felt a huge increase in acceleration! Very happy as it will help me move better in traffic. The whole thing took about 3.5 hours using only hand tools. I watched the Rolling Wrench Big Bore Install YouTube video which did a good job of showing what you need to do. All in all a great upgrade, if you're mechanically inclined you probably won't try it if you're uncomfortable with a wrench.