TT2776 12.5mm BLUE Rotor for the GEN4 series motors.
This rotor is the standard size for SPEC-R & SPECR2 Series motors:
21.5T GEN4 SPEC-R2
17.5T GEN4 SPEC-R2
13.5T GEN4 SPEC-R2
21.5T GEN4 SPEC-R
17.5T GEN4 SPEC-R
13.5T GEN4 SPEC-R
10.5T GEN4 SPEC-R
6.5T GEN4 SPEC-R
Fits ALL GEN4 Modified, SPEC-R and Eliminator series motors.
