Magura MT5 eSTOP Disc Brake Lever - Front Rear Hydraulic Post Mount BLKMagura MT5 eSTOP Disc Brake and Lever Front or Rear Hydraulic Post Mount Black. Maguras MT5 eSTOP eBike Disc Brake is designed for more demanding e bike use. With its powerful 4 piston calipers the MT5 eSTOP offers safe performance at high speeds even on heavy e bikes. The eSTOP system is based on Maguras MT design The 4 piston brake caliper forged in one piece offers outstanding braking force and stability 2 finger aluminum lever blade is durable and