Abstract: A telescopic mechanism includes a top tube, a bottom tube, a supporting tube, at least one stroke tube, at least one first positioning tube, at least one second positioning tube, and a control assembly. The bottom tube is slidably disposed around the top tube. The supporting tube is disposed in the top tube. The at least one first positioning tube and the at least one second positioning tube are disposed in the top tube. The control assembly is connected to the bottom tube and has a positioning base. The positioning base is movably disposed in the at least one stroke tube, the at least one first positioning tube, and the at least one second positioning tube. When the positioning base is fastened with the at least one first positioning tube, the top tube is moved toward a first direction relative to the bottom tube to form a first length.

Abstract: A method for bicycle fitting includes receiving evaluation factors based on one or more scenario parameters; positioning at least one of a saddle and a handlebar to one or more positions when a user is pedaling; determining values for the evaluation factors according to data received from one or more sensors at the one or more positions; and processing the values to identify one or more recommended positions for the saddle or the handlebar.

Abstract: A torque sensor includes a sleeve member configured to be mounted on a center shaft, and a tubular sensor body arranged coaxially with the sleeve member. At least one outer surface of the sleeve member includes one or more magnetostrictive elements. The tubular sensor body includes a bobbin for mounting a sensor coil. An induced current in the sensor coil is detected in response to pedaling by a user. The tubular sensor body includes one or more inclined surfaces inclined with respect to a radial direction of the torque sensor, the one or more inclined surfaces being coupled with the sleeve member or the center shaft.

Abstract: A bicycle frame set includes a front fork, a head tube, a main tube, a seat tube, and a seat stay. The front fork includes a right fork leg and a left fork leg, the right fork leg being substantially parallel to the left fork leg. The front fork is rotatably coupled to the head tube. The main tube is connected to the head tube. The seat tube is connected to the main tube, the seat tube being configured to be connected to a seat post. The seat stay is extending from the seat tube.

Abstract: A bicycle frame set includes a front fork, a head tube, a main tube, a seat tube, and a seat stay. The front fork includes a right fork leg and a left fork leg. The front fork is rotatably coupled to the head tube. The main tube is connected to the head tube. The seat tube is connected to the main tube, the seat tube being configured to connect to a seat post. The seat stay includes a first portion connected to the seat tube at a front end of the first portion of the seat stay. When a rear wheel and a front wheel are mounted to the bicycle frame set, the first portion of the seat stay extends in a horizontal direction substantially parallel with respect to a ground plane supporting the rear wheel and the front wheel.

Abstract: A power-measuring device includes a spindle, a power gauge, an electrical circuit, and a cover. The spindle is configured to provide a coupling with a driving unit. The spindle includes a battery chamber within a hollow space of the spindle. The battery chamber is configured to receive a battery unit. The power gauge is coupled with the spindle to measure power applied to the spindle for driving a movement of the driving unit. The electrical circuit is coupled with the spindle, and electrically coupled with the power gauge. The electrical circuit is coupled with the battery unit and configured to receive and process signals from the power gauge. The cover is coupled with the spindle and arranged to enclose at least a portion of at least one of the power gauge and the electrical circuit.

Abstract: A reinforced prepreg which is applied to a wear-resistant layer structure of a braking track is provided. The reinforced prepreg includes a fiber fabric and a mixture mixed with the fiber fabric. The mixture includes a resin and a plurality of needle-shaped crystals having microscale or nanoscale sizes mixed with the resin.

Abstract: A tire structure disposed at a rim is provided. The tire structure includes a tire body, a flexible sealing member and a nozzle. The tire body is ring-shaped and includes a groove and two beads. The flexible sealing member is connected to the tire body to form an inflating space with the groove, and the flexible sealing member includes a through hole. The nozzle is disposed at the flexible sealing member. The nozzle includes a base and a valve stem. The base includes a screw hole and is disposed at a far side of the flexible sealing member. The screw hole corresponds to the through hole. The valve stem includes a fastening end and an inflating channel. The fastening end is configured to insert into the screw hole, and the inflating channel is configured to allow the gas to pass therethrough.

Abstract: A hub structure includes a tubular body defining a hollow cavity. The tubular body includes a first surface and a second surface, the first surface defining a first groove extending along an axial direction of the tubular body. The first groove is defined by an inner sidewall surrounding the hollow cavity, an outer sidewall spaced from and configured to face the inner sidewall, and a bottom surface coupling the inner sidewall and the outer sidewall.

Abstract: A method for forming a resin-based composite structure is provided. The method includes: providing a prepreg layup, wherein the prepreg layup includes an epoxy resin-carbon fiber composite material; covering a thermal-fusion material on a surface of the prepreg layup; and performing a molding and curing process to fuse the thermal-fusion material with the prepreg layup. Wherein the molding and curing process includes: heating at a first temperature to melt, soften and fully fuse the thermal-fusion material with the prepreg layup; and heating at a second temperature to solidify the thermal-fusion material for forming the resin-based composite structure. Wherein the first temperature is lower than the second temperature.

Abstract: A sole for cycling shoe includes a forefoot section, a heel section and an arch section connected between the forefoot section and the heel section, a longitudinal axis and a tilting axis defined between the forefoot section and the heel section, a deviation angle defined between the tilting axis and the longitudinal axis, a middle part extending through the forefoot section, the arch section and the heel section, and two side wing portions defined at two opposite sides relative to the middle part. The rigidity of the middle part is higher than the two side wing portions. The middle part extends in the arch section along the tilting axis. Based on the above-described technical features, the overall structure of the sole has sufficient rigidity with enhanced torsionability on the rear end thereof, making the cycling shoe more comfort.

Abstract: A bicycle has a spider including a torque input section and at least one torque output section; a crank assembly coupled with the spider through the torque input section and applying an input torque to the spider; a chainring mounted to the spider through the at least one torque output section and receiving an output torque from the spider; a gauge disposed and oriented generally along a tangential direction or a quasi-tangential direction with respect to the torque input section and the at least one torque output section; and a circuitry coupled to the gauge and receiving a signal from the gauge.

Abstract: An electric vehicle includes a frame, at least one front wheel and at least one rear wheel coupled to the frame, one or more pedals coupled to the frame and configured for a user's engagement via pedaling, and a controller configured to output one or more driving signals in response to the pedaling of the one or more pedals. The electric vehicle also includes a first motor coupled to and configured to drive one of the front and rear wheels, and a first driver coupled with the first motor and configured to adjust the output to the first motor in response to the one or more driving signals.

Abstract: An apparatus and a method for bicycle anti-theft are provided. When a biometric feature of a user matches a preset biological feature, a brake lever is fixed at a preset position to lock the bicycle.

Abstract: A method for bicycle fitting includes receiving evaluation factors based on one or more scenario parameters; positioning at least one of a saddle and a handlebar to one or more positions when a user is pedaling; determining values for the evaluation factors according to data received from one or more sensors at the one or more positions; and processing the values to identify one or more recommended positions for the saddle or the handlebar.

Abstract: A crank apparatus includes a crank arm having at least one cavity on one of the surfaces of the crank arm, at least one thin material layer embedded within the at least one cavity and having an exposed outer surface, and at least one sensing element attached to the outer surface of the thin material layer. The crank arm is manufactured of a material with non-uniform strain characteristics, the thin material layer is manufactured of a material with uniform strain characteristics, the crank arm is adapted to be deformed by a force, the thin material layer is adapted to be deformed correspondingly with the deformation of the crank arm, the at least one sensing element is adapted to measure the corresponding strain of the thin material layer to measure the force applied on the crank arm. A bicycle and a stationary exercise bicycle equipped with the crank apparatus are further provided.

Abstract: A sports shoe for cycling exercise includes a shoe body a shoe body including an upper and a bottom for accommodating an exerciser's foot, the bottom defining a forefoot area, an arch area and a heel area, a reinforce element, and a fastening device, a reinforce element mounted at the forefoot area to make the structural strength of the shoe body around the forefoot area to be higher than the structural strength of the arch area and the heel area, and a fastening device connecting the arch area of the bottom and the upper for enabling the bottom to lift the foot.

Abstract: A bicycle has a spider including a torque input section and at least one torque output section; a crank assembly coupled with the spider through the torque input section and applying an input torque to the spider; a chainring mounted to the spider through the at least one torque output section and receiving an output torque from the spider; a gauge disposed and oriented generally along a tangential direction or a quasi-tangential direction with respect to the torque input section and the at least one torque output section; and a circuitry coupled to the gauge and receiving a signal from the gauge.

Abstract: A joint structure of a composite bicycle frame includes a base layer and at least one reinforcing layer. The base layer is made of a first polymeric matrix material doped with a plurality of first fibers. The first fibers have random fiber orientation, and the base layer has a first thickness. The reinforcing layer is adhesively connected to the base layer. The reinforcing layer is made of a second polymeric matrix material doped with a plurality of second fibers. The second fibers have a single fiber orientation. The reinforcing layer has a second thickness which is smaller than the first thickness of the base layer.