Topper D10 Lower Mast Stop Ring

The genuine Topper® D10 Lower Mast Stop Ring is a replacement nylon ring designed to fit around the Topper lower mast.

The stop ring is used beneath the mast gate to correctly locate the mast and is also used around the gooseneck collar position. It helps keep the mast fittings correctly positioned during sailing and allows the mast to rotate as intended.

The ring has a 4mm fixing hole and is supplied with one 4mm rivet for installation.

Topper® part number: D10

Product features

• Genuine Topper® replacement part

• Fits the Topper lower mast

• Used beneath the mast gate

• Helps locate the gooseneck collar

• Durable nylon construction

• 4mm fixing hole

• Supplied with one 4mm fixing rivet

• Ideal for replacing a cracked, worn or damaged stop ring

• Sold individually

Two stop rings may be fitted to a complete Topper lower mast setup, so check which fitting requires replacement before ordering.