Setting the Piston 20º Angle, I get this question a lot... Options

[Eric_Shea]

I get this question a lot so I thought it might help to have it posted in a thread that can be searched etc.

The best way to set a piston angle without using the gauge is to draw an imaginary “Center Line” down the center of the pad cavity. This is illustrated by the “Red” line in this picture.

Set the angle facing the side that has the bleeder. This is illustrated by the yellow arrow in this picture. This denotes the “Top” of the caliper.

By setting the bottom notch of the piston on the center line it will automatically give you the 20º angle as illustrated by the “Green” line in this picture.

For an updated version of this click here: https://pmbperformance.com/pages/no-tool-br...ngle-adjustment

[sean_v8_914]

what is teh reason for this piston orientation?

[realred914]

what is teh reason for this piston orientation?

the bump on the piston top is desinged to force one side of the pad on the rotor first, this gives smoother transition from no pad contact to full pad contact.

one easy other way to get the angle right is to simply use the metal pad spacer that should be under each front pad, the angle is cut into tha metal spacer, line up that angle with the cut bump in the piston top and your in ok this spacer serves to prevent the piston from rotating out of postion. it is the perfect tool for checking the angle.