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Detangler
The detangler, Gyro or rotor is an invention for the freestyle BMX bicycle, allowing the handlebars to turn a complete 360° rotation without the brake cables getting tangled up. A detangler is usually only used for the rear brake cable. The front brake cable can be routed through the stem, via a hollow stem bolt known as a Pott's mod bolt, and fork steer tube to avoid the tangling problem. How it works The single cable from the handlebar's rear brake lever divides into two cables which are routed to opposite sides of the stem or fork steer tube and into cable stops. The inner cables connect to metal tabs on a disc attached to the upper side of a thrust bearing placed around the stem or steer tube. Squeezing the brake lever pulls the inner cables and causes the bearing assembly to rise. A second disc is attached to the bottom of the thrust bearing such that the entire assembly moves together up and down the steering axis while each disc can rotate independently around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detangler
The detangler, Gyro or rotor is an invention for the freestyle BMX bicycle, allowing the handlebars to turn a complete 360° rotation without the brake cables getting tangled up. A detangler is usually only used for the rear brake cable. The front brake cable can be routed through the stem, via a hollow stem bolt known as a Pott's mod bolt, and fork steer tube to avoid the tangling problem. How it works The single cable from the handlebar's rear brake lever divides into two cables which are routed to opposite sides of the stem or fork steer tube and into cable stops. The inner cables connect to metal tabs on a disc attached to the upper side of a thrust bearing placed around the stem or steer tube. Squeezing the brake lever pulls the inner cables and causes the bearing assembly to rise. A second disc is attached to the bottom of the thrust bearing such that the entire assembly moves together up and down the steering axis while each disc can rotate independently around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freestyle BMX
Freestyle BMX is bicycle motocross stunt riding on BMX bikes. It is an extreme sport descended from BMX racing that consists of five disciplines: street, park, vert, trails, and flatland. In June 2017, the International Olympic Committee announced that freestyle park was to be added as an Olympic event to the 2020 Summer Olympics. Early years The earliest photographic documentation of BMX freestyle shows Devin and Todd Bank in 1974 riding BMX bikes on an eight foot tall skateboard ramp they built at their childhood home in West Los Angeles, California. This was the birth of BMX ramp riding. Devin Bank was also documented doing 360 degree freestyle spinning tricks on the street and also in the air by jumping off curbs. Skateboarder Magazine then published photos of kids on bikes riding in empty household swimming pools in 1975. /sup>. In 1975 kids started riding bikes in concrete reservoir channels in Escondido San Diego, California. In 1976 Devin and Todd Bank began riding BMX bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bowden Cable
A Bowden cable ( ) is a type of flexible cable used to transmit mechanical force or energy by the movement of an inner cable relative to a hollow outer cable housing. The housing is generally of composite construction, consisting of an inner lining, a longitudinally incompressible layer such as a helical winding or a sheaf of steel wire, and a protective outer covering. The linear movement of the inner cable is most often used to transmit a pulling force, although push/pull cables have gained popularity in recent years e.g. as gear shift cables. Many light aircraft use a push/pull Bowden cable for the throttle control, and here it is normal for the inner element to be a solid wire, rather than a multi-strand cable. Usually, provision is made for adjusting the cable tension using an inline hollow bolt (often called a "barrel adjuster"), which lengthens or shortens the cable housing relative to a fixed anchor point. Lengthening the housing (turning the barrel adjuster out) t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stem (bicycle Part)
The stem is the component on a bicycle that connects the handlebars to the steerer tube of the bicycle fork. Sometimes called a ''goose neck'', a stem's design belongs to either a ''quill'' or ''threadless'' system, and each system is compatible with respective headset and fork designs: * Quill: the stem inserts into the steerer tube, which is threaded and does not extend above the headset. * Threadless: the stem clamps around the steerer tube, which is not threaded and extends above the headset. Quill versus threadless Although stems are commonly referred to as being of either the quill or threaded type, the thread in question is the one on the fork steerer tube. Quill stems require a steerer tube of the same length as the headset and head tube combined and thus must be matched to the specific bicycle model. Threadless systems use an unthreaded steerer tube, which extends into the stem and may be cut to length as desired in order to accommodate the height of the headset, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Fork
A bicycle fork is the part of a bicycle that holds the front wheel. A fork typically consists of two ''blades'' which are joined at the top by a fork ''crown.'' The crown is often at the front. Most suspension forks have an arch connecting the two side of the lowers (the part connected to the axle.) It is often in front of the stanchions (shaft the lowers slide on) but not always. Above the crown, a ''steerer tube'' attaches the fork to the bicycle and the handlebars (via a stem) allowing the rider to steer the bicycle. The steerer tube of the fork interfaces with the frame via bearings called a headset mounted in the head tube. At the bottom of the fork, ''fork ends'' hold the wheel. Usually, either the axle is bolted to the fork, or a ''quick release skewer'' passes through a hollow axle, clamping the axle to the fork. The term ''fork'' is sometimes also used to describe the part of a bicycle that holds the rear wheel, which on 19th century ''ordinary'' or ''penny-farth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thrust Bearing
A thrust bearing is a particular type of rotary bearing. Like other bearings they permanently rotate between parts, but they are designed to support a predominantly axial load. Thrust bearings come in several varieties. *''Thrust ball bearings'', composed of bearing balls supported in a ring, can be used in low thrust applications where there is little axial load. *''Cylindrical thrust roller bearing''s consist of small cylindrical rollers arranged flat with their axes pointing to the axis of the bearing. They give very good carrying capacity and are cheap, but tend to wear due to the differences in radial speed and friction which is higher than with ball bearings. *'' Tapered roller thrust bearings'' consist of small tapered rollers arranged so that their axes all converge at a point on the axis of the bearing. The length of the roller and the diameter of the wide and the narrow ends and the angle of rollers need to be carefully calculated to provide the correct taper so that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Frame
A bicycle frame is the main component of a bicycle, onto which wheels and other components are fitted. The modern and most common frame design for an upright bicycle is based on the safety bicycle, and consists of two triangles: a main triangle and a paired rear triangle. This is known as the ''diamond frame''. Frames are required to be strong, stiff and light, which they do by combining different materials and shapes. A frameset consists of the frame and fork of a bicycle and sometimes includes the headset and seat post. Frame builders will often produce the frame and fork together as a paired set. Variations Besides the ubiquitous diamond frame, many different frame types have been developed for the bicycle, several of which are still in common use today. Diamond In the diamond frame, the main "triangle" is not actually a triangle because it consists of four tubes: the head tube, top tube, down tube and seat tube. The rear triangle consists of the seat tube joined by p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freestyle BMX
Freestyle BMX is bicycle motocross stunt riding on BMX bikes. It is an extreme sport descended from BMX racing that consists of five disciplines: street, park, vert, trails, and flatland. In June 2017, the International Olympic Committee announced that freestyle park was to be added as an Olympic event to the 2020 Summer Olympics. Early years The earliest photographic documentation of BMX freestyle shows Devin and Todd Bank in 1974 riding BMX bikes on an eight foot tall skateboard ramp they built at their childhood home in West Los Angeles, California. This was the birth of BMX ramp riding. Devin Bank was also documented doing 360 degree freestyle spinning tricks on the street and also in the air by jumping off curbs. Skateboarder Magazine then published photos of kids on bikes riding in empty household swimming pools in 1975. /sup>. In 1975 kids started riding bikes in concrete reservoir channels in Escondido San Diego, California. In 1976 Devin and Todd Bank began riding BMX bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tailwhip
The tailwhip is a bike trick typically performed on a BMX, in which the frame of the bike performs a complete rotation around the front end (bars and forks), which remains stationary throughout the move. The same trick may also be performed on a kick scooter. To do the trick there are a few main methods: these both include whipping the bike around using your arms in a gyrating motion whilst holding the bars, but some riders also kick the bike with their back foot to give it extra momentum. It also helps if you approach a jump crooked, which will throw the bike from under, allowing you to start a tailwhip. Variations ;Footplant tailwhip: Combination of footplant and tailwhip on any obstacle. The rider rides up to any obstacle that is capable of having a footplant done on it. The rider then whips the frame as he would normally with a tailwhip, but instead of keeping his legs sucked into his body, he puts one foot down in a footplant. The rider then waits for the frame to come ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMX Bike
A BMX bike is an off-road sport bicycle used for racing or stunt riding. BMX mean''s bicycle'' ''motocross''. Construction Though originally denoting a bicycle intended for BMX racing, the term "BMX bike" is now used as a generic term to encompass race bikes ('class' and 'cruiser') and those used for freestyle disciplines (street, vert, park, flatland), and dedicated dirt jumper bicycles. Frames are made of various types of steel, aluminum, or carbon fiber. Cheaper, low-end bikes are usually made of steel. Higher range freestyle bikes are mostly chromoly, such as lightweight 4130 chromoly, or generation 3 chromoly. BMX race bikes extensively use aluminum or carbon fiber. Models BMX bicycles are available in these models types: * Dirt – These bikes feature tires with thicker and wider tread for better grip on potentially loose surfaces. * Flatland – flatland style BMX bikes have different frame geometry to traditional park BMX bikes because flatland riding requires pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Cycling
This is a glossary of terms and jargon used in cycling, mountain biking, and cycle sport. For ''parts of a bicycle'', see List of bicycle parts. 0–9 ; 27.5 Mountain bike: A mountain bike with wheels that are approximately in diameter and are based on ISO 584 mm (650B) rims. ; 29er (bicycle):A mountain bike with wheels that are approximately in diameter and are based on ISO 622 mm (700C) rims. ;3:1 rule : A UCI rule stating the depth and breadth (in cross-section) of the bicycle frame tubes cannot exceed the ratio of 3:1. A ; À bloc: Going ''À bloc'' means riding as hard as one possibly can, which can be risky as it leaves one in a state where recovery is needed, and therefore vulnerable to being attacked. ; Aero bars: Extension of the handlebars usually allowing the rider to rest their elbows and benefit from improved aerodynamics. Often found on Time trial bicycles. ; Aero racing bicycle: A type of racing bike that combines the aerodynamic features of a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bicycle Parts
For other cycling related terms (besides parts) see Glossary of cycling. List of bicycle parts by alphabetic order: * Axle: as in the generic definition, a rod that serves to attach a wheel to a bicycle and provides support for bearings on which the wheel rotates. Also sometimes used to describe suspension components, for example a swing arm pivot axle * Bar ends: extensions at the end of straight handlebars to allow for multiple hand positions * Bar plugs or end caps: plugs for the ends of handlebars * Basket: cargo carrier * Bearing: a device that facilitates rotation by reducing friction * Bell: an audible device for warning pedestrians and other cyclists * Belt-drive: alternative to chain-drive * Bicycle brake cable: see Cable * Bottle cage: a holder for a water bottle * Bottom bracket: The bearing system that the pedals (and cranks) rotate around. Contains a spindle to which the crankset is attached and the bearings themselves. There is a bearing surface on the spindle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
