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Sipre · Surfski

Sipre Ackua 645 (Veloce)

Full-length 6.45m race hull at 45cm width, the same beam as the Epic V10 and Nelo 560 advanced skis. Long waterline for glide with a lively, responsive feel Sipre markets as fast and maneuverable; secondary stability rewards an experienced paddler.

Length
6.45 m
Beam
45 cm
Deck
33.5 cm
Lightest
11 kg
 
 
Sipre Ackua 645 (Veloce), studio side-profile product render
studio side-profile product render · kayaksipre.com

Specifications

Length
6.45 m
Beam
45 cm
Deck height
33.5 cm (est.)
Category
Surfski
Usually paddled by
Confident ocean paddlers
New price
A$3,800

Layup weights

Fiberglass (polyester)13.5 kg
Carbon vacuum (epoxy)11 kg

On-water profile

Stability
5–7
Dimension estimateLow confidence
Speed
9

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 3 linked sources.

Suits: Flatwater racing and ocean downwind for fit, experienced paddlers wanting speed and maneuverability.

Paddler weight

The estimated sweet spot is 82–95 kg, with a broader estimated guide of 67–99 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

~2014-present

Launched 2014 as the 'Ackua Veloce' surfski (surfskiportugal), later catalogued as SS1 Ackua 645; a 6.45m x 45cm performance hull. Note: an OC1 'Veloce' outrigger shares the Veloce name in the current lineup.

Pros and cons

Pros

  • Fast, long 6.45m race waterline
  • Advanced 45cm width in the Epic V10 / Nelo 560 band
  • Light carbon layup (~11kg)

Cons

  • Demands solid balance, not for beginners
  • No AU dealer, import/secondary only
  • Naming overlaps the OC1 'Veloce' outrigger

What paddlers say

surfskiportugal.wordpress.com launch post: a 'novo SIPRE surfski... modelo de performance' with 'linhas muito fluidas e atractivas' (very fluid, attractive lines), debuted competitively by Artur Pereira at the SIPRE Kayak-Sea Cup (surfskiportugal.wordpress.com).Reported experience
The surfski.info chart places 'Sipre Ackua Veloce' at 45cm / 645cm, alongside the Epic V10 and Nelo 560 advanced-race hulls (surfski.info).Reported experience

Where to buy

Sipre ↗

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

~A$3,800 import/secondary estimate (report); Sipre is Portugal-direct with no AU dealer. Carbon-vacuum layup ~11kg, fiberglass ~13.5kg.

Sources

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 Prices checked October 2026, may be out of date.