11
Caster Forks and Stems
Frog Legs Ultra Sport Fork Polymer Replacement
NOTE: The Ultra Sport fork has different polymers that can be used based on the chair user’s weight
and preferred ride. The Phase 2 fork has one polymer that works for any configuration. If ever
needed, the replacement procedure is the same for a Phase 2, but no coin is needed.
1. Remove the pivot pin screw (D) using a 4mm Allen wrench.
2. Use a punch or small screwdriver and a rubber mallet to push the pivot pin (A) out.
3. Open the fork assembly and remove the polymer (C) and coin (B).
4. Install the new polymer (C) and coin (B).
5. Insert the pivot pin (A) back into the fork assembly. A punch or small screwdriver can be used to help
align holes if needed.
6. Secure the assembly by reinstalling the pivot pin screw (D) using a 4mm Allen wrench.
7. Repeat steps on opposite side.
Assembled View
A
B
C
D
