-40%

BEST GY6 100CC BBK BIG BORE KIT FOR 139QMB 1P39QMB SCOOTER ROKETA TAOTAO A9 CAM

$ 63.33

Availability: 442 in stock
  • Item must be returned within: 30 Days
  • Returns Accepted: Returns Accepted
  • Brand: IMPUSA
  • Restocking Fee: 20%
  • Best GY6 100cc BBK: 69mm High Lift rockers valves A9 racing cam
  • Refund will be given as: Money back or replacement (buyer's choice)
  • Condition: New
  • Warranty: Yes
  • Manufacturer Part Number: Does not apply
  • Type: Cylinder & Cylinder Heads
  • Return shipping will be paid by: Seller

    Description

    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 direct upgrade kit for GY6 50cc 139qmb engine without modification.
    Why is this advertised as the best? Simple put, 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. 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.
    Big Bore kit
    includes
    Fully assembled cylinder head
    69mm high lift valves, best performance valves
    69mm high lift rockers, best performance rockers
    Cylinder body
    Cylinder head gasket set
    Carburetor main jets upgrade kit, new carb is useless if the jets are stock size
    (added on 7/23/19)
    A9 high performance camshaft
    Piston & Rings set
    69mm
    high lift camshaft holder
    Manifold added on 9/27/19
    Bore kit
    works with:
    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
    Zhongshen ZS50QT-4
    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
    Multiple items can be combined shipping, please look at our other items, thank you.
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