-ISIS Monty ProRace crank screws.
-Made fro m a single piece of aluminum 7075 T6 high quality.
-Screw M15.
-They have conical head low profile with 6 recesses that help eliminate unnecessary weight.
-Screw M15xL18 mm.
-8mm allen head.
-Washer Ø20.5xØ15x1 mm.
-Available in 3 anodized, orange, black and red.
-Weight 12 gr. (washers included).