The Shimano Deore XT BR-M8100 Postmount brake caliper is with its 2-piston construction perfect for Cross Country use. Compared to its predecessor a quicker piston retraction leads to superior modulation what results in an improved braking control. The G03A Resin brake pads in combination with the light 2-piston caliper guarantee extremely good deceleration and low weight at the same time.