Content
- 1 Seat Mount
- 2 sizes
- 3 Materials
- 4 pins with shock absorption
- 5 Features
- 6 See also
- 7 notes
- 8 References
Seatpost - part of a bicycle made in the form of a pipe connecting the saddle to the frame. The pin is fixed in the frame with a clamp. The saddle is fixed with a bolt lock. [one]
Saddle Mount
Apart from various proprietary mechanisms, the most common are three types of pin mounting to the saddle:
- Narrowing to the top (classic)
- Single bolt
- Double bolt
In addition, the bolts in the structure can be replaced by eccentrics for quick removal and installation.
Sizes
The most common seatpost diameters: [2]
- 27.2 mm
- 28.6 mm (aka 1 1/8 ", mostly classic)
- 31.6 mm
- 34.9 mm
Materials
Seatpipes are made from the same materials as most other bicycle components:
- aluminum alloys
- steel
- titanium / scandium- containing alloys
- carbon fiber ( fr. "carbon" )
Depreciation Pins
There are two of the most common shock absorbing seatpost designs:
- Telescopic design, like forks
- Lever, parallelogram design
In telescopic structures, an elastomer is usually used as an elastic element, while a lever one involves the use of metal springs. Elastomers are characteristic of inexpensive seatposts. Both types can be equipped with more complex hydraulic / gas-oil systems.
Features
All seatposts are marked with an allowable mounting height. Exceeding this threshold can lead to damage to the pin or seat tube, as well as harm to health.
See also
- Saddle (bike)
Notes
- ↑ Sheldon Brown. Sheldon Brown's Bicycle Glossary Sa-So (English) (2012). Date of treatment July 18, 2013. Archived on September 4, 2013.
- ↑ Sheldon Brown. Sheldon Brown's Seatpost Size Database (English) (2012). Date of treatment July 18, 2013. Archived on September 4, 2013.
Links
- The article "Seatpost" on velowiki . Date of treatment July 18, 2013. Archived on September 4, 2013.