YYF F.A.S.T. parts for 401K

These are 3D printed replacement parts for your YoYoFactory F.A.S.T. 401K.

Please note that they are NOT compatible with 401SD or Velocity.

Each F.A.S.T. system consists of
1) Shuttle (where the response pad sticks on)
2) Dial
3) Cap

Each of these 3D printed parts is compatible with the 401K's stock parts. You can buy only the parts you need, or replace the entire set for a fresh look.

Two shuttle styles are available:
a) 19mm pad shuttle has a groove can use standard 19mm pads
b) .555/Dif pad shuttle has a flat face that can use old school stickers!

Response pads not included.

Regarding custom colours: Custom colours can be arranged for the dials and caps. Please reach out through the contact page or social media to inquire.

If you have your own 3D printer, the STL files are free!
https://www.layerinfinity.com/yoyofactory-fast-parts

F.A.S.T. is a YoYoFactory technology. Sold here with permission.