4 pot caliper orientation
Discussion
My 4 pot calipers have 2 small pistons and 2 larger ones, which ones go at the top.
If the disk rotates in a clock wise direction, the calipers are at 3 o'clock I think that the small pistons should be at the top, the idea being that the bottom of the pads connect first due to the larger piston and the rotation of the disks pull the top part in. Can anyone confirm this.
If the disk rotates in a clock wise direction, the calipers are at 3 o'clock I think that the small pistons should be at the top, the idea being that the bottom of the pads connect first due to the larger piston and the rotation of the disks pull the top part in. Can anyone confirm this.
Small pistons at the top like you thought. As the pad grabs the disc they try to twist forcing the leading edge of the pad to clamp harder and the trailing edge to clamp softer, so the bigger piston at the back counters the force imbalance, hence it should go on the trailing edge of the pad, which is the bottom.
Edited by PhillipM on Saturday 14th August 20:02
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