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The seat post attaches to the seat rails by means of a clamp; Seat lug: a frame lug on the top of the seat tube serving as a point of attachment for a clamp to secure the seat post; Seat tube: the roughly vertical tube in a bicycle frame running from the seat to the bottom bracket; Seat bag: a small storage accessory hung from the back of a seat
For most of the bicycle's history, steel has been the primary material for bicycle frames, with lugged construction the primary assembling method. Steel continues in use by builders of high-quality steel frames, though its dominance as a frame material has waned since the mid-1990s displaced largely by aluminum and carbon fiber; lugging has ...
rattleCAD is a parametric 2D computer-aided design (CAD) software specific for bicycle design, [1] [2] in particular for design bicycle frame, [3] [4] developed by the Austrian cyclist and programmer Manfred Rosenberger since 2008. [5]
A "plain" seatpost (silver) connects the saddle to the frame (red). A microadjust seatpost (black) of a Trek Fuel 80 mountain bike. A seatpost with a significant setback on a BMX bike. A bicycle seatpost, [1] seatpin, [2] saddlepole, [3] saddle pillar, [4] or saddle pin [5] is a tube that extends upwards from the bicycle frame to the saddle ...
A BTC in the down tube of a touring bicycle An S and S coupling equipped Burley packed in its cases. An S and S Coupling also known as a Bicycle Torque Coupling or 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 ...
Yamaguchi Bicycles is a custom bike frame builder in Rifle, Colorado.. Yamaguchi Bicycles was founded in 1987 by Koichi Yamaguchi, a frame builder who went on to work as the National Team Mechanic for the US Cycling Federation in 1988 and the official frame builder for the United States Olympic Cycling Team in 1989.
[4] [5] Sinyard started importing Italian bike components which were difficult to find in the United States, [3] but the company began to produce its own bike parts by 1976, starting with the Specialized Touring Tire. [5] [6] In 1981, the company introduced its first two bikes: the Sequoia, a sport-touring design, and the Allez, a road bike. [7]
An alternative solution would be to use an E-type front derailleur, which does not clamp around the seat tube at all. Mount types. Clamp: Until recently, most front derailleurs are mounted to the frame by a clamp around the frame's seat tube, and this style is still the standard on mountain bikes and is common on road bikes.