Shimano Deore XT BR-M8120 4-Piston Disc Brake and Lever - Wheat Ridge Cyclery | Colorado's Largest Bike Shop
Shimano SLX 4-Piston Brakes Offer a Familiar Feel and Similar Power at a Better Price [Review] - Singletracks Mountain Bike News
The New Shimano XT Four-Piston Brake - Mountain Bike Feature - Vital MTB
Amazon.com: SHIMANO Deore XT BL-M8100/BR-M8120 Disc Brake and Lever - Front, Hydraulic, Post Mount, 4-Piston, Finned Metal Pads, Black : Sports & Outdoors