2024 YAMAHA BOLT R-SPEC BORN WITH PERFORMANCE

Air-Cooled V-Twin The 58-cubic-inch (942cc) engine is an air-cooled SOHC 60-degree V-twin with four valves per cylinder, a pent-roof shaped combustion chamber and 9.0:1 compression ratio. The engine is designed to provide excellent power and superior low-end torque. Low Friction Internals Special roller-type rocker arms with needle bearings are used to keep friction loss to a minimum, increase durability and help the engine achieve the ideal performance characteristics. Advanced Cylinder Design The pent-roof combustion chamber shape was precisely engineered to direct the fuel/air charge to the center of the piston for more efficient combustion and maximum power. Ceramic-composite plated cylinders provide excellent heat dissipation and reduced oil consumption. Lightweight Performance Pistons High-quality forged aluminum pistons have a lightweight, high-strength, compact design that contributes to reduced vibration and increased durability. Fuel Injection A sophisticated twin-bore fuel injection is used on the Bolt R-Spec to deliver strong acceleration for the ultimate in urban riding fun. Precise 3D maps for ignition timing and fuel injection enhance performance in the mid- and low-speed ranges. Compact Air Cleaner The stainless steel air cleaner cover provides a “raw metal” look that accentuates the Bolt R-Spec’s distinctive styling. In addition, the air cleaner design provides great intake efficiency and enhanced torque characteristics. Unique Bolt Exhaust System A...