Abstract: A noise reduction device is provided that mounts at the intersection of a pair of spokes of a bicycle wheel. The noise reduction device can also have magnetic properties for use with a bicycle monitoring device. In a preferred embodiment, the noise reduction device is a magnetic device that has a body portion and a magnet. The body portion has at least one spoke-receiving recess on one side, and at least another spoke-receiving recess on the other side. In an alternate embodiment, the spoke-receiving recesses are irregularly shaped, so as to accommodate a variety of spoke angles. When the magnetic device is used with a monitoring device, it communicates with a sensing device, which is adapted to be coupled to a portion of the bicycle that is adjacent to a wheel of the bicycle. A display unit is adapted to be mounted on handlebars of the bicycle for displaying the speed of the bicycle or other information obtained from sensing the rotation of the wheel.

Abstract: A V-type engine air intake device is provided for a V-type internal combustion engine. The V-type engine air intake device has a volume chamber, a first intake pipe, a second intake pipe and a plurality of curved branch pipes. The first intake pipe has a first outlet end connected to a first intake opening of the volume chamber. The second intake pipe has a second outlet end connected to a second intake opening of the volume chamber. The first and second outlet ends are arranged with first and second center outlet axes where that the first and second intake pipes connect to the volume chamber. The second center outlet axis is non-coincident with the first center outlet axis. The branch pipes each has an inlet end that opens inside the volume chamber in a substantially vertical downward direction.