Hope Tech 4 X2 Disc Brake and Lever Set - Rear, Hydraulic, Post Mount, BlackThe Hope Tech 4 X2 builds on their 25+ years' experience designing and manufacturing hydraulic brake systems. The Tech 4 uses all new internal sealing for reduced friction and the pivot spins on roller bearings, allowing the spring rate to be reduced. The lower spring rate in turn gives a lighter lever action, reducing rider fatigue and keeping Hope's legendary feel and modulation. This Tech 4 lever, combined with an updated X2 caliper, provides