The K4S Sport is a high-speed electric fin motor that installs where a fin would go and steers with a remote. It works on inflatable boats, paddle boards and kayaks, and it’s designed to be lightweight and easy to set up for quiet electric propulsion.
Specs at a glance
- Model: K4S Sport
- Type: remote-steering electric fin motor
- Fits: inflatable boats, SUPs and kayaks
Good to know
- Check that your board or kayak has a compatible fin box before ordering.
- Confirm whether a battery is included, and check local rules for motorized craft on your water.
KayakDIY take: Electric fins are a light, quiet way to add power to a paddle craft. For more options, see my best kayak motors guide.
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