Brand new GY6 100CC BBK BIG BORE KIT for Chinese 4 stroke Scooters & Mopeds Upgrade 49cc 50cc to 100cc. The best way to get more RPM, the maximum upgrade kit for GY6 50cc 139qmb engine. We don't throw in useless parts to make the BBK look enormous. Every component is carefully selected to boost performance, not just for the show.
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. Bore kit works with 139QMB engine.Roketa 49cc 50cc 4 stroke scooters such as Bahama, Maui, Sicily, Tank, Baotian 50QT-9. E-Ton 49cc 50cc 4 stroke. 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 "KYMCO ETON JONWAY SUNL BAJA VIP HIGH PERFORMANCE GY6 100CC BIG BORE KIT BBK 50MM" is in sale since Tuesday, November 17, 2015. This item is in the category "eBay Motors\Parts & Accessories\Scooter Parts\Engines & Engine Parts\Big Bore & Top End Kits".
The seller is "imotorpartsusa" and is located in Los Angeles, California. This item can be shipped worldwide.