One Design Parts

Replacement rudder pivot bolt for ISCA sailboat rudder assemblies. Zim Sailing Part # 48169 This is an official International Sunfish Class Association™ (ISCA®) class approved fitting. Zim Sailing is the exclusive manufacturer and distributor...

Replacement tiller pivot bolt pack for ISCA sailboat tillers. All the hardware you need to securely attach your wishbone style tiller to the rudder head. Zim Sailing Part # 48168 This is an official International Sunfish Class Association™...

Complete rudder assembly for ISCA sailboats. Includes fiberglass rudder blade, rudder head, tensions springs, and pintle pin and spring assembly for secure connection to gudgeon bracket. Complete Rudder Assembly Fiberglass Rudder Blade Rudder...

Official class approved lower racing boom for the ISCA sailboat. This is our 'Race' spec boom and includes Harken Carbo blocks in place of the traditional Racelite blocks for higher performance. Also includes cleats for sail control systems.  ISCA...

Standard class legal mast for the ISCA sailboat. Includes mast top cap and bottom cap.  Freight Shipping - This is an oversized item that requires freight shipping or in store pickup from our Bristol, RI warehouse. Please call (401) 237-6117 to...

Race ready N1 daggerboard for the Optimist. This class legal epoxy daggerboard is great for the active Opti racer. N1NRD  

9" Sail Numbers for One Sails. RED

9" Sail Numbers for J Sails.

9 inch sail letters for J sails. 

9" Sail Numbers for J Sails.

The club optimist mast is ideal for beginners and club racers that are looking for durability and affordability without sacrificing performance. The mast comes with all mounted cleats and hardware. Club opti spars are constructed with...