Precisely machined for a perfect fit, the LRT-2 removes and installs the front chainring lockrings found on ShimanoA(R) STEPSA(R) e-bike motor systems. Features 36 mm hex fittings for use with the Park Tool TWB-36 Crow Foot and a torque wrench (each available separately) to achieve proper torque. Heat-treated and plated 4140 steel construction ensures durability and long life.