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Website. rattlecad.com. rattleCAD — is a parametric 2D 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] The application is written in the Tcl programming language using the Tk -based GUI.
Shared-lane markings alternating with full bike lanes in Grand Street (Manhattan).. Behavioral studies prepared for the Federal Highway Administration and the city of San Francisco have shown that streets with shared lane arrows increase separation between motor vehicles and cyclists, encourage cyclists to ride outside of the door zone, and may reduce wrong way cycling and sidewalk cycling ...
Chainset: see Crankset. Chainstay: a pair of tubes on a bicycle frame that runs from the bottom bracket to the rear fork ends. Chain tensioner: a device to maintain proper chain tension. Chaintug: a device to aid in setting the proper chain tension. Cluster: a bicycle cogset, either a freewheel, or cassette.
Bicycle drivetrain systems have been developed to transmit power from riders to drive wheels by a variety of methods. Most bicycle drivetrain systems incorporate a freewheel to allow coasting, but direct-drive and fixed-gear systems do not. The latter are sometimes also described as bicycle brake systems. A belt-drive crankset.
Bicycle and motorcycle geometry. Bicycle and motorcycle geometry is the collection of key measurements (lengths and angles) that define a particular bike configuration. Primary among these are wheelbase, steering axis angle, fork offset, and trail. These parameters have a major influence on how a bike handles.
Computer-aided design (CAD) is the use of computers (or workstations) to aid in the creation, modification, analysis, or optimization of a design. [1]: 3 This software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing. [1 ...
DWG (from drawing) is a proprietary [3] binary file format used for storing two- and three- dimensional design data and metadata. It is the native format for several CAD packages including DraftSight, AutoCAD, ZWCAD, IntelliCAD (and its variants), Caddie and Open Design Alliance compliant applications.
Bikeway controversies. Controversies have surrounded dedicated cycling routes in cities. Some critics of bikeways argue that the focus should instead be placed on educating cyclists in road safety, and others that safety is better served by using the road space for parking. [ 1 ]