Castlenut Socket Tool. Use on Softail 2018up with Inverted Forks & V-Rod 2012-2017 with Inverted Forks. - Jims

The new Softail inverted forks utilizes a unique inner fork nut (Castlenut) to secure and compress the fork spring. This one-piece solid steel socket is designed to help the technician by securing the socket to the joint rod prior to final assembly.

Fitment:

M8 Softail with Inverted forks (i.e. FXDR, Sport Glide, Fat Bob, Low Rider S

V-Rod (Most 2012-2017)

Some Sportster models with Inverted forks