Only fits the blue version of the 2815 brushless motor (3mm shaft)
Product Description
Fits only the 2815 brushless blue motor which has a 3mm shaft.
For the standard 380 (400), or 480 hop-up choose from the standard prop #40201 or the balanced version also recommended for the 2815 brushless silver motors with 2.3 mm shafts prop #40200.