A force measurement sensor includes a peripheral portion, a central portion, and a first frame connecting an upper section of the peripheral portion to an upper portion of the central portion. The central portion includes a seat intended to receive the outer ring of a bearing in order to mount a shaft in rotation about an axis Z. The frame includes a core enclosed by two arms which are substantially parallel to one another, such that the upper section of the peripheral portion, the upper portion of the central portion, and the two arms form a parallelogram.

A bicycle frame is discussed having a battery fully contained within a down tube of the bicycle frame. The battery may be inserted into or removed from the down tube via a through opening through a bottom bracket housing of the bicycle frame. Weakness in the bottom bracket housing due to the through opening may be compensated for, fully or partially, by utilizing a bottom bracket bearing assembly that has a structural component, or structural component assembly, that extends completely through the bottom bracket housing and removably couples to the bottom bracket housing.

An operation parameter detecting apparatus for a vehicle is provided to obtain a pedaling torque value, an angle of a central shaft with a magnetic ring, a corresponded rotating speed and a corresponded pedaling power, respectively by measuring an electromagnetic force of a coil induced by a magnetic variation due to a deformation of a covered magnetic sleeve linked to a central shaft, a voltage output from at least a Hall corresponded to a magnetic flux density of which the distribution in a 1, 2 or 3 dimensional space is partly a monotonic increasing or decreasing function in an area with the same polarity, and at calculation relative to the time.

A bicycle bearing system comprising: an integrated cup, the integrated cup having an outer diameter; a plurality of rolling elements configured to abut and rotate against a first race groove located on an inner surface of the integrated cup; a second race groove configured to abut and rotate about the plurality of rolling elements, the second race groove located on an inner surface of the inner race, the inner race having an inner diameter; where the rolling elements do not have a separate outer race, but rather the inner surface of the integrated cup acts as the outer race to the rolling elements; and where the rolling elements, integrated cup and inner race are axially locked when assembled as a single cartridge unit due to the geometry of the rolling elements, first race groove and second race groove.

A cycling pedal assembly including a body configured to slide and pivot on a horizontal rotational axis formed by an axle, roller bearing, and spherical rolling joint.

Bicycle sub-assembly with integrated anti-theft system, for providing a bicycle with an integrated anti-theft capability, the bicycle sub-assembly including a support frame for operatively receiving constituting component(s) of the bicycle, and a blocking assembly being operatively mountable onto the support frame, adjacent to a corresponding bore associated with the support frame for receiving a corresponding spindle of the bicycle, the blocking assembly having at least one blocking mechanism being operatively cooperable with said spindle, the blocking assembly being selectively operable by an authorized user of the bicycle between a first configuration where the at least one blocking mechanism allows the spindle to rotate along an intended mode of the bicycle, and a second configuration where the at least one blocking mechanism operatively interacts with the spindle to prevent it from rotating along the aforementioned intended mode of the bicycle, so as to impede an unauthorized use of the bicycle.

A bicycle bearing system comprising: an integrated cup, the integrated cup having a non-flanged outer diameter; a plurality of rolling elements configured to abut and rotate against an inner surface of the cup race; an inner race configured to abut and rotate about the plurality of rolling elements, the inner race having an inner diameter; wherein the rolling elements do not have a separate outer race, but rather the inner surface of the integrated cup acts as the outer race to the rolling elements; wherein the rolling elements' sizes are maximized to the limitation that the non-flanged outer diameter is smaller or equal to a first maximum diameter, and wherein the rolling elements sizes are maximized to the limitation that the inner diameter is greater or equal to a first minimum diameter.

The present disclosure related to an effort-saving crank structure (1) of a bicycle (8), which includes: a crank mechanism (10) having a crank (11), a shaft end gear (12) and a treadle end gear (13) disposed on the crank (11); a transmission mechanism (20) disposed in the crank (11) and having a rotation shaft (21) and a first gear (22) and a second gear (23) connected to the rotation shaft (21), the first gear (22) and the shaft end gear (12) are engaged for transmission, and the second gear (23) and the treadle end gear (13) are engaged for transmission; a rotation arm unit (30) having a first rotation arm (31) and a second rotation arm (32), two ends of the second rotation arm (32) are respectively connected to the first rotation arm (31) and the treadle end gear (13).

A one-way bearing, a bearing assembly, and a free-wheeling mechanism for a bicycle are disclosed herewith. The bearing assembly, in one aspect, includes a one-directional bearing having an inner and an outer race, the one-directional bearing including a sprag clutch mechanism. The bearing assembly, according to this aspect, further includes a first thrust bearing and a second thrust bearing, wherein the inner and outer races of the one-directional bearing are formed to retain one or both of the first or second thrust bearings, and a one-directional bearing mechanism located between the inner and outer races. In at least one aspect, the inner race has a flange extending in a radially outward direction, the sprag clutch mechanism abuts the flange on an inner axial side of the flange, and the flange abuts the first thrust bearing on an outer axial side of the flange.

A crankset assembly to be mounted on a bicycle includes at least one right-hand bearing for mounting a crankset shaft and a force sensor positioned around the outer ring of the bearing. The force sensor includes a peripheral portion, a central portion, and a top frame connecting a top section of the peripheral portion to a top portion of the central portion. The frame is positioned at a diameter oriented along an axis (Y′). The axis (Y′) makes an angle (φ) of between 10° and 30° with the vertical axis (Y) and the top frame is positioned behind the vertical axis (Y).