SKU: 12677708443

Extendable Gennaker Bowsprit for on-deck installation, ø87 mm aluminium section, Max total length 2270 mm

Sale price$530.15 Regular price$589.06
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

Extendable Gennaker Bowsprit for on-deck installation, ø87 mm aluminium section, Max total length 2270 mmThe main benefits of an extendable gennaker bowsprit: Gives the gennaker more clear air Facilitates rapid gybing Always ready for quick extension Makes for fast and efficient gennaker handling Improves performance when gennaker sailing Can be fitted to most yachts Available in carbon or aluminium Extendable aluminium gennaker bowsprit sold as a kit for deck mounting. Fit the two foldable stainless steel pad eyes to the deck in line with the bow

The main benefits of an extendable gennaker bowsprit:

• Gives the gennaker more clear air  

• Facilitates rapid gybing

• Always ready for quick extension

• Makes for fast and efficient gennaker handling

• Improves performance when gennaker sailing

• Can be fitted to most yachts

• Available in carbon or aluminium

 

Extendable aluminium gennaker bowsprit sold as a kit for deck mounting. Fit the two foldable stainless steel pad eyes to the deck in line with the bow bracket (bracket to be ordered separately) and you will have two attachment points for the inboard (aft) end of the bowsprit. The forward pad eye is used when the bowsprit is pushed out and activated. The aft pad eye is for "stand-by" storage, and if required, the bowsprit can be quickly removed and stowed securely below deck. 

The gennaker tackline runs through the bowsprit, entering and leaving via well rounded holes, and then aft to the cockpit.

Add a D-shackle to the outboard end and it will allow attachment of a top-down gennaker furler. Attach the furler, push out the bowsprit and engage it to the foldable pad eye and you are all set for efficient and fun downwind sailing.

The bow bracket is a stainless ring with a low friction polyamide inner lining through which the bowsprit slides into its “active”  position. It must be fixed to a strong and solid part of the bow as it will handle high load, both vertical and sideways. Four different versions of bow bracket rings are available and which one to use depends on the design of the bow. 

By using our digital calculator you can easily determine which dimension of bowsprit/bow bracket you need for your boat.

https://support.seldenmast.com/en/services/calculators/bowsprit_calculator.html

This is based mainly on the righting moment of your boat, the unsupported length (USL) of the bowsprit and the Distance between supports between the bowbracket and the forward pad eye (DBS). 

Important - this product is designed and dimensioned primary for gennakers/asymmetric spinnakers and not for Code Zero sails. A Code Zero is projected to very high load and for the bowsprit to be used, the USL must be drastically reduced as opposed to when used for gennaker.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12677708443

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4.0 ★★★★★
Based on 18 reviews
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Verified Purchase
SM
Omaha, US
★★★★★ 5
Great for Zimaboard 2 NAS setup
Nicely built and easy to install. Love how adjustable it is. Mounted simply under my desk.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
O
Verified Purchase
Oliver JM
Phoenix, US
★★★★★ 5
Sturdy - Easily Adjustable - Works as Advertised
I modified it to fit a small subwoofer under my desk. I flipped the arms, inverted them and screwed it on to the desk. Not the intended use, but it solved my issue perfectly. It's really sturdy, it'll be perfect for mini PC's.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
K
Verified Purchase
Kaleb
Alexandria, US
★★★★★ 5
Perfect for mounting subs!
Love it. Mounted my subwoofer under desk with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
A
Verified Purchase
Amazon Customer
West Palm Beach, US
★★★★★ 5
Flexibility and clean desk space!!!
Bought three of these for my home office. Two for Synology NAS drives and one for a Mac Studio. The size ranges make this the perfect product to get everything off my desk. A little difficult to install with the desk upright so I suggest turning it on its side or over completely. In my case, I have these in sit stand desks which is great.
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Reviewed in the United States on December 24, 2025
W
Verified Purchase
William Lech
New York, US
★★★★★ 4
Decent bracket, Non-beveled screw holes cause complications
The screws that secure the mount to the underside of the desk stick out enough to cause the inner dimensions to change. I had to use the next hole down to increase the size of the bracket to accommodate my device, resulting in a less secure mount than desired. If the holes were beveled so that the screws fit more flush with the mount I'd be able to give it 5 stars. But the inner dimensions are not entirely as advertised due to the screws. Quality is up to standard otherwise, installation is relatively straightforward, price point is fine for a bracket of this size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2025

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