Scaled up to Keelboat Size

Extract from Seahorse Technical Briefing, June 2026 edition.

Allen’s blocks are moving on up from Moths to Cape 31s and even Imoca 60s, with a two-tonne max working load…

From its humble 1950s beginnings by two brothers in a garden shed, Allen has always set its sights on quality and performance. Over the years, the company has built a strong reputation for small boat blocks and hardware, specialising in high-speed, high-load products that over the past decade became the go-to among top Olympic and Moth campaigners.

Now Allen is expanding its range, this time to meet the needs of the keelboat market. The coming months will see the roll-out of a range of 45mm and 60mm High Roller blocks, the first products of this type in the company’s catalogue. The range responds to demands from those seeking the edge offered by Allen’s precision-engineering approach and race-winning reputation. Its development has been at the request of boatbuilders and race teams alike.