Designed by Bernd Breymann and Klaus Enzmann, the K2 X is a fractional-sloop-rigged multihull intended as a light, responsive day sailor rather than a cruiser with conventional accommodations. Three versions—Active, Touring, and Regatta—use the same hull platform while offering equipment and sail plans for different levels of performance.
Design and Construction
The redesign introduced bows in a wave piercer design and increased hull volume compared with the K1. The high hull shape provides substantial buoyancy, which allows this 353-pound catamaran to carry two adults at speed without digging in.
The K2 X measures 5.17 m on the water, has a beam of just over 8 feet, and weighs 160 kg ready to sail. Its sail-area-to-displacement ratio is 61.03. The capsize screening ratio of 4.53 places it firmly in beach-cat territory rather than the offshore-cruising range, as its open structure and righting aids also make clear.
Both the hull and deck are solid fiberglass, and the builder’s records note lead ballast. Like all Topcat boats, the K2 X can be almost completely dismantled in a few simple steps. Broken down, it forms a compact package on a road trailer that can fit in a garage at home—a genuine distinction from most catamarans of any size.
Rig and Sail Plan
The standard K2 X carries a 13.5 m² mainsail and a 4.2 m² jib. Owners can choose either Dacron sailcloth or the higher-performance Pentex option, depending on budget and ambition.
The Touring and Regatta versions include a new roller-furling gennaker as standard. The Touring carries a 15.5 m² gennaker, while the Regatta gets a 17.7 m² gennaker and a larger 15.9 m² mainsail.
The manufacturer describes the Active as a modern 17 ft beach catamaran, the Touring as a 17 ft allrounder with gennaker, and the Regatta as a 17 ft racing catamaran. The platform therefore ranges from casual sailing to class racing without a change of hulls.
Cockpit, Comfort, and Use
There’s no enclosed accommodation in the conventional yacht sense. This is an open beach cat, and its “comfort” comes from having room to move across the trampoline and hull tops while sailing at speed. The space aboard provides a high level of comfort while cruising or at top speed, a claim rooted in the volume gain forward rather than in any enclosed cabin.
The K2 X follows the One-Design-Principle of the TOPCAT Philosophy, so boats within a given variant are intended to be directly comparable on the racecourse.
Accessories such as the righting and boarding aid assure that one person can right the 17 ft catamaran after a capsize. That can keep an unexpected swim from ending the day on the water.
Known Characteristics
The main considerations are inherent to the type. The K2 X is a lightweight, open catamaran that relies on high hull buoyancy and a single-person righting aid after a capsize. Its nearly complete dismantlability places normal wear on the fittings and track rather than on the hull structure.
Equipment and Ownership
Ownership choices center on the equipment bundles. Buyers can customize the K2 X to their desired performance level through various packages, with the choice between Dacron and Pentex sailcloth providing the first step.
Because the boat can be almost completely dismantled, trailering, garage storage, and off-season breakdown are straightforward compared with a fixed-bridgedeck catamaran. On the Touring and Regatta versions, the roller-furling gennaker also simplifies downwind handling for the casual owner.
The Verdict
The Topcat K2 X is a thoughtfully updated beach cat that respects its K1 class roots while modernizing the hull with wave-piercer bows and more volume. It is light, dismantlable, and rightable by one person—a rare combination at 17 feet. Its three variants let casual sailors and class racers choose the performance level they want while remaining within the One-Design framework.
Pros
- Wave-piercer bows and added hull volume improve buoyancy and seakeeping over the K1
- Almost completely dismantlable for road transport and garage storage
- Righting and boarding aids allow one-person recovery after a capsize
- Scales from the Active beach cat to the Regatta racer on the same One-Design hull
Cons
- Open catamaran with no enclosed accommodation
- Lightweight construction and a capsize screening ratio suited to beach and day sailing rather than offshore use
