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BOS · Surf lifesaving spec

BOS Nemesis Double

Two-seat surf lifesaving specification ski, hand-built to order in Warriewood, NSW. BOS publishes no dimensions or weight: the figures shown are the SLSA double-ski class limits (7.32 m maximum length, 58 cm minimum beam), and the class sets a 32 kg minimum weight.

Length
7.32 m
Beam
58 cm
Deck
33.5 cm
Side view unavailable
Top view unavailable

Specifications

Length
7.32 m
Beam
58 cm
Deck height
33.5 cm (est.)
Category
Surf lifesaving spec
Usually paddled by
Paddlers in chop
New price
A$7,700

On-water profile

Stability
6–9
Editorial estimateLow confidence
Speed
7

Our estimate from published descriptions and reviews. 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 a cautious editorial estimate; it is not backed by a hull trace. Qualitative context includes 2 linked sources.

Suits: Surf lifesaving double-ski racing and surf-zone paddling for two. Built to the class weight of at least 32 kg, so it is a two-person carry.

Paddler weight

The estimated sweet spot is 81–94 kg per seat, with a broader estimated guide of 66–98 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

current

Listed by BOS as the Nemesis 3 Double, the two-seat version of the Nemesis. Fixed-length or adjustable, standard or deep seat.

Pros and cons

Pros

  • Custom built for both paddlers, with fixed or adjustable footwells and a deep-seat option
  • Same tail-rocker hull concept as the single, for control through the break

Cons

  • No published length, beam or weight
  • Built to order: about 12 weeks plus freight

Where to buy

BOS Oceansport ↗

Dealers:

BOS Oceansport · AU ↗

BOS Oceansport lists the Nemesis 3 Double from A$7,700 including GST, October 2026. Built to order with a A$2,000 deposit; freight is extra.

Sources

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 Prices checked October 2026, may be out of date.