The Shimano Deore XT BL-M8100 / BR-M8120 front brake offers powerful 4-piston braking performance for demanding trail and enduro inserts. The ergonomic BL-M8100 brake lever ensures fast, controlled brake maneuvers with a direct pressure point. The BR-M8120 brake calipers offer maximum delay with high heat resistance-ideal for aggressive driving styles and long descents. You can return old batteries that we have as new batteries in our range, free of charge at our shipping camp (shipping address). The symbols depicted on the batteries have the following meaning: The symbol of the rubbed garbage can means that the battery must not be added to household waste. PB = battery contains more than 0.004 mass percent lead CD = battery contains more than 0.002 mass percent cadmium HG = batt.