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RC-Monster Mike
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Posts: 4,915
Join Date: Nov 2004
Location: PA
09.24.2014, 04:36 PM

The black mounts are older(nice mounts, as they are 7075 aluminum and black anodized - probably made 100-200 in that "version") and only accept M3 motor mount screws. The newest mounts are thicker at the motor area, natural finish, and accept M3 and M4 screws for mounting the motor.
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