Picture of a conical shaped spring featuring approximately .125" wire diameter
2d image showing a caliper knockback spring positioned against a brake caliper piston
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  • Load image into Gallery viewer, 2d image showing a caliper knockback spring positioned against a brake caliper piston

Caliper Knock Back Springs

HB-03054
Vendor
StopTech
Regular price
$3.00
Sale price
$3.00
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A variety of piston knockback springs are available for StopTech Racing calipers. 

Flexing of the corner assembly can push the piston/brake pad back into the caliper body (knock back.) At the next braking event, a period of limited to absent braking can result while the piston/pad travels the gap caused by the “knock back”.

To prevent this, knock-back springs of varying force can be installed behind each caliper piston to resist the knock back occurrence.