Patent ID: 7454961

Claim:
A system for sensing position of a motorcycle crankshaft, comprising: a flywheel that is arranged perpendicularly and concentrically with respect to the crankshaft, and an electronic sensor positioned for sensing a face of the flywheel, wherein the face of the flywheel has a plurality of notches therein, wherein the electronic sensor is equipped to sense passage of the notches past the sensor, wherein the flywheel has a rim, and the rim is toothless, wherein the notches are arranged on the face of the flywheel with at least one irregularity that is detectable by the electronic sensor when the irregularity passes by the sensor, for establishing an angular position of the crankshaft, wherein the face of the flywheel further comprises an aperture configured to fit around a pin that is configured to drive at least one connecting rod, or vice versa, when the crankshaft rotates, and wherein the pin also connects the flywheel to a further flywheel, said at least one connecting rod being positioned at least between the flywheel and the further flywheel.