Hayes caliper assembly kit gramthis hayes replacement caliper assembly kit is for the stroker gram it includes the 2 titanium bridge bolts brake pads pistons etc please note no mount bolts the stroker trail and carbon were already tremendously capable across a range of applications but we knew we could make an even better brake for weight obsessed cross country racers and pedal up pedal down all mountain types the result is the stroker gram what sets the gram apart from all the other mo