Hope Tech 4 V4 Disc Brake Right/Rear 74mm Blk/BrzThe 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 our legendary feel and modulation The updated V4 caliper utilizes hybrid style stainless steel pistons with a phenolic insert allowing for smoother movement and less maintenance, while still able to manage high