The 998cc inline-four-cylinder engine features Yamaha’s exclusive crossplane crankshaft technology derived from Yamaha's YZR-M1 MotoGP® race bike. Every aspect of this unique engine is built to thrill.

The R1 features a cableless ride-by-wire Yamaha Chip Controlled Throttle (YCC-T®) system that transforms the rider’s inputs into motion, with a full suite of IMU-powered electronic rider aids that bring new meaning to the term "rider confidence."

In developing the R1, Yamaha engineers combined feedback gleaned from top-level riders and the world's most challenging race circuits. Advanced electronic systems boost rider confidence and control while the engine, suspension, brakes and aerodynamics complete the package.

The R1’s 998cc inline-four-cylinder engine features Yamaha’s exclusive crossplane crankshaft technology derived from Yamaha's YZR-M1 MotoGP® race bike. By equalizing inertial forces at the crankshaft, the CP4 motor delivers a direct feeling of linear torque, giving the rider the ultimate connection between throttle grip and the rear wheel.

Titanium connecting rods use Yamaha’s precision fracture-split method to ensure maximum reliability with minimal weight. Combined with titanium intake valves and forged pistons, these lightweight parts help achieve the CP4’s high redline and over-rev capability. The cylinder block is also offset from the crankshaft, reducing friction loads on the pistons and bores.

The cylinder head, intake system, fuel injectors and airbox work together to enhance part-throttle performance. And by creating a smaller and shorter intake tract, injectors are able to spray fuel directly against the intake valves for improved fuel atomization.

Compact rocker-arm valve actuation uses optimized geometry to allow for larger valve lift than conventional cam-driven systems, while using lower cam lobes and reduced spring pressure to reduce friction losses.

The R1 is equipped with a muffler and heat shields manufactured primarily from lightweight titanium. The compact midship muffler also centralizes mass low in the frame and as close to the center of the machine as possible for optimal handling.

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