We can modify any of these kits with different parts to suit your build. If you find a kit that you like however you would prefer that it has a different part such as batteries, throttle, sprockets, etc. then please let us know and we can make a beach cart kit that is specialized for your project.
Also depending on what size wheels the cart will have we can help with running gear ratio calculations and determining what size sprockets to use.
Please let us know if you have any questions.