The race face evolve 34 riser 318mm handlebar a highly engeneered bar at an attracive price point designed for xc riding yet strong enough for am adventures as well race face evolve 34 riser 318mm handlebar features a highly engineered bar at an attractive price point designed for xc riding yet strong enough for am adventures as well manufactured from cold drawn seamless air alloy material shot peened for increased fatigue life gradual external swaging amp