Mast Cap

• Made of cast aluminum
• Attached with 3 stainless steel rivets
• Closes the top end of the extruded aluminum mast
• Molded cap has an attachment point for the upper sheave and sheave pin
• WindRider recommends using a 1-1/4 inch fender washer on either side of the sheave to prevent halyard slippage, this creates a roller for the halyard line to glide on as it raises and lowers the main sail.