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Bicycle torque coupling

An S and S coupling equipped Burley packed in its cases

An S and S coupling also known as a bicycle torque coupling (BTC) is a coupling which enables bicycle frames to be separated into smaller pieces, usually to facilitate packing and transporting. Couplings can be built into the frame by the frame manufacturer when the frame is made or can be added to a frame after it is finished. A special spanner is available for tightening and loosening the couplings.{{cite web | url-status = bot: unknown

Applications

The couplings are usually installed in the top tube and down tube of a single-rider diamond frame. This enables the bicycle to be boxed small enough to avoid the extra fee most airlines charge to check a bicycle as luggage.{{cite web

Characteristics

The couplings are available in stainless steel, cromoly steel, and titanium and in different sizes, from 5/8 to to match the frame tubing in which they are installed.{{cite web

It takes a few minutes to separate the couplings.{{cite web | url-status = dead

Alternatives

In order to support the ovalized tube Santana Cycles uses between the bottom bracket shells of their tandems, they have developed their own oval couplers.

References

References

  1. "Santana When two seats are not enough".
  2. "Santana: The Oval Solution".
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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