Shimano Y2RJ98060 diaphragm unit for XTR BL-M9220 and XT BL-M8100 brake lever.

The Y2RJ98060 replaces the diaphragm and cap in the lever reservoir, maintaining hydraulic oil pressure and smooth system operation. It is exclusively compatible with Shimano levers BL-M9220 (XTR 4-piston) and BL-M8100 (XT), assisting in service after bleeding or wear.

Features & Specifications:

• Manufacturer: Shimano
• Model / Series: Y2RJ98060
• Product type: Diaphragm unit for brake lever
• Usage: Maintenance / replacement for hydraulic levers – hydraulic disc brake service
• Compatibility: Shimano levers BL-M9220 (XTR), BL-M8100 (XT)
• Material: Durable synthetic / high-quality Shimano plastic
• Mounting type: Direct installation on the lever reservoir (with mounting screw)
• Weight: 8 g

Important compatibility note: Compatible only with BL-M9220 (XTR) and BL-M8100 (XT). Does not fit older series (e.g. M9100, M8000) or other models such as Deore, SLX without confirmation. Always check your lever’s exploded view at si.shimano.com and use appropriate mineral oil during installation.