Topper Mast Stop Ring
Topper Mast Stop Ring - Supplied Each
Topper mast stop ring which rivets to the Topper lower mast section. Used to locate the mast in the mast gate and to locate the gooseneck.
These are used on pre 2014 masts with the old style gooseneck and sleeve
These are sold individually (There are 2 on each lower mast) and you may need to order rivets too.
It's 52mm so it fits comfortably on a 50mm tube