# Sipre Ackua 515

> Surfski by Sipre. Canonical page: https://surfskiindex.com/surfskis/sipre-ackua-515/
> Cite as: Sipre Ackua 515, Surfski Index, https://surfskiindex.com/surfskis/sipre-ackua-515/ (checked 2026-10-15). Terms: https://surfskiindex.com/using-our-data/

## Specifications
- Length: 5.15 m
- Beam: 55 cm
- Deck height: 33.5 cm (estimated)
- Layup weights: Fiberglass (polyester) 17 kg, Carbon vacuum (epoxy) 10 kg
- Usually paddled by: New paddlers

## Ratings (Surfski Index estimates)
- Stability band 9–10 out of 10 (dimension estimate, low confidence).
- Speed rated 4 out of 10.

Modelled from published beam, length and deck height. Low confidence. Speed is our rating. Both are given at the hull's own design weight.

These ratings are Surfski Index estimates, worked out from published dimensions, traced hull shapes where we have them, and reviews. They are not supplied by the maker or timed on the water. How a ski feels depends on your weight, skill, set-up and the conditions, so use them to shortlist skis and paddle one before you buy. Method: https://surfskiindex.com/how-it-works/#limits

Evidence note: This band is estimated from published dimensions. Qualitative context includes 1 paddler report and 2 linked sources.

## Paddler weight
Estimated sweet spot 81–94 kg, broader estimated guide 66–98 kg. An estimate from hull dimensions, not the designer's intended weight.

## Suits
Flatwater and learning on sea, river or lake; first downwind runs in sheltered-to-moderate conditions.

## Hull
Short (5.15m), moderately wide (55cm) entry hull with a racing-style cockpit and Sipre's ergonomic seat. Rounded, forgiving cross-section that Sipre markets as exceptionally stable while still gliding well; the short waterline keeps top speed modest.

## What works
- Sipre markets it as exceptionally stable and easy to handle
- Light in the top layup (~10kg carbon-vacuum)
- Ergonomic racing seat and multiple construction options

## Trade-offs
- Short 5.15m waterline limits top speed
- No AU dealer, import/secondary only
- Thin resale and parts market outside Europe

## Generations
- ~2019-present: Current Sipre short entry/beginner surfski, 5.15m x 55cm, ergonomic Sipre bucket seat and racing-style cockpit; offered in multiple layups from fiberglass-polyester to carbon-vacuum epoxy.

## What paddlers say
- Sipre product copy: 'the ACKUA 515 is exceptionally stable, easy to handle, and thrilling to paddle... its sleek lines and racing-style cockpit make it look like a competition boat,' with a stated weight of 10-17kg depending on construction (kayaksipre.com).

## Sources
- https://www.kayaksipre.com/ss1-ackua-515/
- https://surfski.info/forum/19-boats/18846-surfski-width-x-length-chart-jan-2026.html

## Prices
Current new prices and dealers: https://surfskiindex.com/surfskis/sipre-ackua-515/#buy