Machined in our shop to fit the our SKYSHARK spars (except the RSS2P)

Originally designed to provide a super strong nock for big sticks, tough enough to keep the end of the stick from being crushed. Great example would be the bottom of the vertical stick on a Rokkaku.

Customer requests caused the creation of these internal nocks for smaller diameter spars for the same reason.

If you need a size that is not listed, give us a call. We make these in our shop.