people in a boat

R4 Surf

Precision waves. Effortless control.

wakersurfer is surfing behind a boat

R4 Surf Exterior

The Cobalt R4 Surf features a low-profile hull design that brings you closer to the water while improving handling and storage. Built with Cobalt’s Custom Wave Technology, it combines a redesigned surf hull, Volvo Penta Forward Drive, and Surf Gate system to deliver consistent wave performance and smooth operation across a wide range of conditions.

Cobalt R4 Surf electric swim step deployed with R4 branded grip mat, red hull accent, and SURF branding

Electric Swim Step

The electrically powered swim step lowers and raises at the push of a button, improving water access and usability at the stern. Designed for smooth, quiet operation, the system integrates cleanly into the swim platform without adding complexity to the user experience.

What Makes The Cobalt Surf System

Volvo Penta Fwd

Volvo Penta Fwd

Forward-facing propulsion designed for performance and safety. The system pulls the boat through the water for smoother acceleration, better efficiency, and a quieter ride.

Specifications

LOA
24' 3"
Beam
8' 6"
Fuel
50 gal
Capacity
13
Head
no
Ballast
1226 lbs
View All Specs
boat
people in a boat

R4 Surf Interior

The Cobalt R4 Surf interior combines modern helm technology with a functional, open layout. Dual Garmin touchscreen displays provide clear access to navigation and system controls, while premium materials and thoughtful storage solutions support comfort, durability, and ease of use throughout the cockpit.

touchscreen

Garmin Touchscreens

Dual Garmin touchscreen displays provide integrated control of navigation, surf settings, and onboard systems through a clean, responsive interface.

WSIA Wake Responsibly guidelines on Cobalt Boats: stay 200 feet from shore, keep music at reasonable levels, minimize repetitive passes

Wake On. Wake Responsibly.

The WSIA is the towed water sports industry’s leading advocate, known for preserving the vitality of our activities long into the future. As a group, we develop best practices, maintain waterway access rights, educate participants, promote safety and facilitate sustainable industry growth.


 

Download Our Brochure

Request a digital version of our R4 Surf brochure by providing us a little information below.