Carbonology · Flatwater trainer
Carbonology Ultra X LV (K1)
The Ultra K1 at lower volume: same 5.2 m length, 39 cm instead of 41 cm, front deck down from 29.5 cm to 27.5 cm and back deck from 25 cm to 23 cm. Same platform seat, under-stern rudder, splash lip and optional pump. Rated 50-80 kg against the Ultra’s 75-100 kg.
- Length
- 5.2 m
- Beam
- 39 cm
- Deck
- 35.4 cm
- Lightest
- 8 kg
Specifications
- Length
- 5.2 m
- Beam
- 39 cm
- Deck height
- 35.4 cm (est.)
- Category
- Flatwater trainer
- Skill level
- advanced
- New price
- A$3,375
Layup weights
On-water profile
Both scores are rated at the hull's own design weight. How these are derived.
Suits: Flatwater racing and marathon for paddlers roughly 50-80 kg. Not an ocean craft.
Paddler weight
This hull is built around a paddler of about 80 kg. It stays workable from 70 kg to 85 kg, and sits at its best between 74 kg and 82 kg.
Derived from published hull dimensions and calibrated against manufacturer paddler limits, not taken from a marketing range. The method, in full.
Generations
Low-volume Ultra for lighter paddlers, 2 cm narrower with both decks dropped.
What works, and what it costs you
What works
- Genuine low-volume K1 for a light paddler, not just a narrower one
- Same price as the standard Ultra
- Down-river build available
Trade-offs
- Not a surfski: needs a spray deck
- Band tops out around 80 kg
- No independent review or owner report
Where to buy
Dealers in the markets we have mapped:
Australian Paddle Sports 2026: River build (11 kg) A$3,375, Hybrid (9 kg) A$3,475, Carbon (8 kg) A$4,100, Carbon Wood Inlay (8 kg) A$5,500. Priced identically to the full-volume Ultra.
Similar craft
Closest in stability, speed and paddler weight across the whole index.
