Every component is carefully selected to boost performance, not just for the show. Without A9 cam and 69mm valves and rockers, your engine will not reveal the full potential of the BBK. You might find those so called 100cc BBK for a little cheaper, but they are all lack of the very key components to maximize your engine performance.
We are the only supplier with the key combo included. Most of our customers are returning customers and experienced builders who know the true value of this kit. 69mm high lift valves, best performance valves. 69mm high lift rockers, best performance rockers. Carburetor main jets upgrade kit, new carb is useless if the jets are stock size (added on 7/23/19).69mm high lift camshaft holder. Roketa 49cc 50cc 4 stroke scooters such as Bahama, Maui, Sicily, Tank, Baotian 50QT-9. Taotao 49cc 50cc 4 stroke scooters such as GT5, Fastwind, atm50-a1, cy50-a, cy50-b, cy50-t3, funny 50, Roman 50, Retro 50, Speedy 50, Venus 50. SUNL 49cc 50cc 4 stroke scooters. VIP future champion 4 stroke.
Jonway 49cc 50cc 4 stroke scooters such as warrior 50. Baja 49cc 50cc 4 stroke scooters such as motorsports SC-50 sun city, primo. Baotian BT49QT-2, BT49QT-7, BT49QT-9, BT50QT-9, BT50QT-11. Fly Scooter 49cc 50cc 4 stroke scooters.Tank 49cc 50cc 4 stroke scooters. Jinlun 49cc 50cc 4 stroke scooters. The item "BEST GY6 100CC BBK BIG BORE KIT FOR 139QMB 1P39QMB SCOOTER ROKETA TAOTAO A9 CAM" is in sale since Friday, June 6, 2014. This item is in the category "eBay Motors\Parts & Accessories\Scooter Parts\Other Scooter Parts". The seller is "imotorpartsusa" and is located in Los Angeles, California. This item can be shipped worldwide.