INCA carbon fiber with RTM technology: A fusion of carbon fiber and 6061 alloy that gives the perfect blend of strength, stiffness, light weight and durability. Protects your handlebar from breaking under pressure. Extra stiff to give unmatched responsiveness and precise steering control without weighing your bike down. BBB INCA carbon fiber. Combination of 6061 T6 aluminum and carbon fiber. High tech look. Oversized. Extremely light, strong and stiff. Bar center diameter: 31.8mm. Weight: 249 grams. Available in 40, 42 and 44cm. 144.3mm drop 81.3mm reach.