Are the scupper holes in your Riot Mako series kayaks rated for use with a cart that would go into them?
We do not recommend using the scupper holes for the carts. The hulls are too heavy for that and may cause damage in the scupper hole areas. A wider heavier duty flat type cart is best with straps to anchor it in place. The scupper type carts can however be used on our lighter weight Riot Sit on Top kayaks, just not the Mako Series.