Deore BL-M4100 / BR-MT420

• BL-M4100
• Intuitive and powerful braking
• Quicker brake engagement with shorter free stroke
• Rider tunable and action-optimized cockpit
• High-performance brake control
• Additional contact point for a stiffer brake lever
• 10 deg. rotation angle setting range for I-SPEC EV shifting leverBR-MT420
• 90% braking power vs. BR-MT520
• 20% increase braking power vs. current 2-piston BR-MT400