Hope tech 3 v4 disc brakethe hope tech 3 v4 disc brake improves ergonomics and integration on your handlebars with a 5 increase in stopping power over the tech evo master cylinder this hope tech 3 v4 disc brake also features popular design features reach and bite point control bpcadjustability as the piston is actuated by a cam and a roller system to eliminate any free play and initial friction style and performancethe hope tech 3 v4 disc brake is made with the classic split clamp design w