Sram EX1 rear derailleur

Meet the world´s first rear derailleur built specifically for E-MTBs. The SRAM EX1 is engineered to master the high-torque, low-cadence shifting unique to electric mountain bikes. Its robust X-HORIZON® design and ROLLER BEARING CLUTCH® work together to deliver clean, confident 8-speed shifting while eliminating chain slap and ghost shifting. This ensures maximum drivetrain stability and a quiet, precise ride on even the most punishing terrain. Spend less time worrying about your gears and more time enjoying the trail