Description:Fitment:49cc 66cc 80cc Motorized Bicycle With Power Boost BottlePackage Included:1 PC Intake Manifold With ConnectorNote:Please Compare Our Product Against Yours, Including its Appearance, Size,Shape Before Ordering.Thank You.

Package include: 1* CDHpower gas frame tank cap of gas tank frame and 1 pc Led Flash Tyre Wheel Valve Cap Light

THERE IS NO!!!! SPROCKET IN THIS SELL..JUST THE HUB THAT DOES IS A GREAT JOB IN KEEPING YOUR SPROCKET TRUE CONCENTRIC ..AND SQUARE TO HUB SUPER EASY TO INSTALL ON STANDARD COASTER HUB................HUB SIZE 1.510 +./- .030,,,,, MOST BEACH CRUISERS HAVE THIS SIZE HUB IF IT'S A COASTER BRAKE....WORKS...