Jackshaft kit for gasoline-electric bike conversion accessories.
Motorized Bicycle with jackshat kit installed on it gets less noise, can ride bike as normal bike too.The reason why the chain in the kit is relatively long is because it is as suitable as possible for different models. If the chain is too long for your vehicle model, you can manually adjust it for disassembly.
This project requires higher installation capabilities. If you are not familiar with the installation or adjustment of this kit, you can refer to the instructions in the package and purchase with caution.