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Carbonology · Surfski

Carbonology Cruze X RT

A 5.2 m x 54 cm rotomoulded polyethylene hull, 30 cm shorter and 2 cm narrower than the composite Cruze X but far heavier at roughly 23-24 kg. Front and rear storage compartments, bungy rigging, a carbon footplate, one-way bullet scuppers and an optional steel overstern rudder. The venturi system is built from carbon paddle shaft offcuts so it can be reshaped and replaced.

Length
5.2 m
Beam
54 cm
Deck
33 cm
Lightest
23.5 kg
Carbonology Cruze X RT — studio side profile
studio side profile · carbonologysport.com

Specifications

Length
5.2 m
Beam
54 cm
Deck height
33 cm
Category
Surfski
Skill level
beginner
New price
A$2,250

Layup weights

Rotomoulded23.5 kg

On-water profile

Stability
8.5
Speed
3.7

Both scores are rated at the hull's own design weight. How these are derived.

Carbonology calls it "one of the most stable and the most robust surf ski in the CS range" and scores it 1 on its own 1-10 scale, level with the composite Cruze X; Australian Paddle Sports rates it 5/5. It is shorter and slightly narrower than the Cruze X, which costs a little of the primary stability the extra plastic and the flatter roto hull give back. Speed is set low deliberately: 23-24 kg of polyethylene on a 5.2 m waterline is the slowest combination in the Carbonology range.

Speed here also has a traced hull behind it: measured off this boat's own side and plan photographs, the shape alone rates it 4.0, and the published score moves a third of the way toward that. What that means.

Suits: Flatwater and sheltered-bay learning, touring with gear, hire fleets and schools. Not a downwind boat.

Paddler weight

This hull is built around a paddler of about 76 kg. It stays workable from 66 kg to 80 kg, and sits at its best between 70 kg and 77 kg.

Derived from published hull dimensions and calibrated against manufacturer paddler limits, not taken from a marketing range. The method, in full.

Generations

2023-

Rotomoulded sister to the composite Cruze X, aimed at hire fleets, paddling schools and recreational/touring buyers.

What works, and what it costs you

What works

  • Cheapest way into the range by a wide margin
  • Rotomoulded, so it survives being dropped, dragged and hired out
  • Real storage compartments front and rear

Trade-offs

  • 23-24 kg — heavy to carry, heavy on the water
  • Slowest craft in the range
  • Plastic hull cannot be repaired the way a composite one can

Where to buy

Carbonology Sport ↗

Dealers in the markets we have mapped:

Australian Paddle Sports 2026: A$2,250, one build only. It is the cheapest craft Carbonology sells and roughly a third of the price of the top composite layups.

Sources