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Spoon Sports 4-Pot Aluminum Caliper
Two differing diameters of 42.85 mm and 38.18 mm have been adopted for the four pistons; specifically, the smaller diameter is used for the entry of disk rotation; the larger, for the output side. Accordingly, it has been possible to counteract the self-servo effect, which occurs when the disk rotates during pad application, and as a result, the pressure applied to the disk by the pad has been made more uniform. Also, this improvement enables excellent, stable braking performance to be assured over long service lives.
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