The Tech 4 V4 builds on our 25+ yearsexperience 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 our legendary feel and modulation. The updated V4 caliper utilises hybrid style Stainless steel pistons with a phenolic insert allowing for smoother movement and less maintenance, while still able to manage high temperatures without heat transfer during extreme use.Key Features:Increased power versus Tech 3Lever shape updated to provide a more ergonomic shape orientated to provide the best mechanical advantage during braking.Hinged clamp reducing weight and ergonomicsShifter integration improved for more adjustabilityTool free bite point and reach adjustmentsRigid CNC'd one piece caliperCompatible with a wider range of current shifter optionsComplete b