A detangler

The detangler is an invention for the Freestyle BMX bicycle allowing the handlebars to turn a complete 360° rotation without the brake cables getting tangled up. The correct name for this device is the 'detangler'. It is commonly called the Gyro. The trademark for the term "Gyro" is owned by Odyssey BMX, of Cerritos, California. "SST oryg" is another common detangler. Image File history File links Size of this preview: 433 × 599 pixelsFull resolution (629 × 870 pixel, file size: 81 KB, MIME type: image/jpeg) Taken by Andrew Dressel Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1. ... Image File history File links Size of this preview: 433 × 599 pixelsFull resolution (629 × 870 pixel, file size: 81 KB, MIME type: image/jpeg) Taken by Andrew Dressel Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1. ... Freestyle BMX is a creative way of using bicycles originally designed for bicycle motocross racing. ... Invented by Frank Bowden, a bowden cable is a type of flexible cable used to transmit mechanical force or energy by the movement of an inner cable (most commonly of steel or stainless steel) relative to a hollow outer cable housing. ...

A detangler is usually only used for the rear brake. The front brake cable can be routed through the stem and fork steer tube to avoid the tangling problem. Quill stem with a removable face plate. ... bicycle fork A bicycle fork is the portion of a bicycle that holds the front wheel and allows one to steer. ...

How it works

From the brake lever the single cable is split into two parts, each of the ends of the cable are fed either side of a disc which sits around the steerer tube of the fork.

The disc is joined to another similar disc below it by means of a lip, allowing full rotation about each other.

The lower disc also has two cables fed from it, which are mounted on the frame joining into one cable further down, then being fed into the brake.

There is also a second variation of the system. Instead of using splitters for the upper and lower cables, two cables (dual cables) run from the brake lever to the detangler and two more run to the brakes.

Gyro advantages

Cables do not get tangled which allows bike tricks such as the tailwhip or barspins to be performed. This page describes tricks that can done on a standard bike, BMX or Mountain. ... It has been suggested that this article or section be merged with Bike trick. ... It has been suggested that this article or section be merged with Bike trick. ...

If a dual-cable set up is used, the brakes can be adjusted more precisely.

Gyro disadvantages

Due to the increased number of components, flexing parts make the brake not be as sharp as with a single cable.

Dual Cables decreases the flexing, but can give a rigid feel that some people do not like.

It is slightly heavier and more expensive than a conventional configuration.

The gyro naturally allows the bicycle to be ridden with the forks reversed, which gives the unusual handling characteristics resulting from a very large trail dimension. For stunts this is not a problem, but for riding in traffic it may be dangerous as the bicycle may feel difficult to steer. Bike wheelbase, head angle, fork offset, and trail Bicycle and motorcycle geometry is the collection of key measurements (lengths and angles) that define a particular bike configuration. ...