Tech3 v4 disc brake with braided hose tech 3 lever matched with the v4 caliper offers an excellent brake for the most serious of downhill tracks rigid cncd one piece caliper v4 caliper uses four phenolic pistons to give more usable power tech 3 lever offers 5 more power compared to our previous lever ergonomic lever design to fit around other handle bar items the tech 3 lever is directly compatible with shimano i spec shifters specification tech 3 lever offers genuine bite point and reach adju