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Sipre · Surfski

Sipre Ackua 575 (Marlin)

Mid-length (5.78m), 48cm-wide intermediate hull sitting in the same width band as the Epic V10 Sport and Think Evo II. Balanced primary and secondary stability aimed at fitness paddlers stepping up from wide beginner skis.

Length
5.78 m
Beam
48 cm
Deck
33.5 cm
Lightest
12 kg
 
 
Sipre Ackua 575 (Marlin), on-water / detail photo
on-water / detail photo · kayaksipre.com

Specifications

Length
5.78 m
Beam
48 cm
Deck height
33.5 cm (est.)
Category
Surfski
Usually paddled by
Paddlers in chop
New price
A$3,200

Layup weights

Fiberglass (polyester)16 kg
Carbon vacuum (epoxy)12 kg

On-water profile

Stability
6–8
Dimension estimateLow confidence
Speed
7

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. How we rate.

Stability here means how steady the ski feels sitting still on flat water. Where two craft have overlapping ranges, we can't say which is more stable. Downwind handling is a separate thing, covered in the evidence note below.

Evidence note

This band is estimated from published dimensions. Qualitative context includes 2 paddler reports and 2 linked sources.

Suits: Fitness paddling and intermediate racing on flatwater to moderate ocean; a step toward downwind.

Paddler weight

The estimated sweet spot is 77–90 kg, with a broader estimated guide of 63–93 kg. This estimate is a guide, not a limit. Seat fit, conditions and paddling style matter. Lighter paddlers can still enjoy a larger hull, especially downwind. A test paddle is the best check.

Estimated from hull dimensions using a formula fitted to makers’ own paddler limits. It does not establish the designer’s intended paddler weight. How this is worked out.

Generations

~2018-present

Intermediate ski listed on surfski.info as 'Sipre Marlin M' (48cm x 578cm); launched alongside the OC1 Ackua Veloce in Sipre's 2018 line.

Pros and cons

Pros

  • Versatile 48cm intermediate width
  • Good stability-to-speed balance for fitness paddlers
  • Full 5.78m length glides better than short beginner skis

Cons

  • No official AU distribution, import/secondary
  • Layup weights not fully published
  • Very little English-language review coverage

What paddlers say

The surfski.info Width x Length chart lists it as 'Sipre Marlin M' at 48cm x 578cm, placing it in the intermediate fitness-ski band next to the Epic V10 Sport and Think Evo II (surfski.info).Reported experience
Sipre showcased the 'SS1 Ackua 575 and OC1 Ackua Veloce' together in its own launch video (SIPRE Kayaks, Facebook).Reported experience

Where to buy

Sipre ↗

We don't have a dealer listed for Sipre yet. All makers and dealers.

~A$3,200 import/secondary estimate (report); no AU distributor. Weight runs ~16kg fiberglass down to ~12kg carbon-vacuum.

Sources

BetaRatings are estimatesRatings are estimates. How we get the numbers. Prices checked October 2026, may be out of date.