Crankset for Hiboy P6 Electric Bike – 7-Speed Version This is an original replacement crankset for the Hiboy P6 Electric Bike. Please Note: This crankset is compatible with the 7-speed version of the Hiboy P6 only . It is not compatible with the 9-speed version . Please check your bike's drivetrain version before placing your order. If you are unsure whether your P6 is the 7-speed or 9-speed version, please contact our customer service team before purchasing. We’ll be happy to help you confirm compatibility.