One Design Parts

High quality North training sail. Fully race ready with sail hoist mark, class insignia and class measurement button. Very well made from durable Dacron, will last much longer and hold its shape better than the resin rich, lower grade, training sails out...

The ZHW training sail can be used on any Optimist or Pram. The luff is shorter and the clew to head is a straight line which eliminates the sprit and significantly reduces sail area. The battens have been eliminated to allow for easy storage. Great for...

Epoxy daggerboard optimized for racing at the class minimum weight. made according to the latest IODA rules. Our Epoxy daggerboard has an excellent finish and is fitted with battens made of teak.

Epoxy rudder optimized for racing at the class minimum weight. Made according to the latest IODA rules. Our epoxy foils have an excellent finish. Tiller available separately.

Stainless hoop trapeze ring with block.  You won't ever miss when you hook in. Great for your Zim C420. Weight: 63.00 g Safe working Load: 150 kg Breaking Load: 350 kg Max line size: 6 mm Purchase: 1

Fighter's top-of-the-line daggerboard meets the strictest IODA standards. This is the Flex blade for athletes under 40kg (88lbs). Perfect hydrodynamic profile and smooth finish provides a reduction in water flow resistance, and therefore a higher speed...

Fighter's top-of-the-line daggerboard meets the strictest IODA standards. This is the Medium blade for athletes over 40kg (88lbs). Perfect hydrodynamic profile and smooth finish provides a reduction in water flow resistance, and therefore a higher speed...

Fighter Pro Rudder from Slawomir Baranowski! Rigged and includes OptiParts fittings, tiller, and extension. Some assembly is required. Product ships without the tiller attached to the foil/blade. *BLEMISHED BLADE - PLEASE READ* These blemished foils from...

The standard boom block is mounted to the mid point of the ILCA boom. Pass your mainsheet up from your mainsheet block, through the boom block, and then aft to the boom block with becket to complete your rigging. Attaches to the boom with the stainless...

The boom block with becket is attached to the aft end of the ILCA boom. Pass your mainsheet through the block, down to the traveler block, and back up to secure to the becket. A great upgrade for an older boat, particularly for light air sailing!...

The ILCA Vang Upper Block is a Harken wire block with becket with attached vang key. It features indented sides to prevent the line from slipping off the sheave. The included vang key is the latest 'updated' style with larger head for improved strength...

The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race. Sheave 16 mm / 5/8 in Length: 54 mm / 2 1/8...