A bike that is suitable size and shape for the rider will allow an optimal fit to be achieved.Ī bike fit is all about adjusting the bike to suit your body, not adapting your body to suit the bike. And one is likely to be a better fit for you than the other.īike Fitting is the process of fine tuning the position of the bike - body contact points in relation to each other for your riding comfort, efficiency and performance.įEET TO PEDAL - BUTT TO SADDLE - HAND TO BARSĪ bike the wrong size or shape does not allow for an optimal fit position to be established. So two bikes with the same frame size but a different shape will feel different to ride. Some have a lowered front end for more aggressive aerodynamics (and looks), but may be a pain in the neck to ride. Some are "square", some are high, but short in length. In addition to the frame size is the frame shape, or geometry. More important than the seat tube length is the top tube length, as this has a big influence on the seat to handlebar distance, which is a major factor in riding position and comfort. Or it might be expressed as a generic Small, Medium, Large, leaving the actual size even more open to interpretation, and difficult to compare brands or models. Manufacturers differ in how this is measured, so two or three bikes from different brands, each with the same published frame size may actually be significantly different in actual size. Frame size is commonly an expression of the seat tube length. There is more to bike sizing than having enough stand over clearance, and there is more to bike sizing than fixating on a frame size. A bike of an appropriate size is a precursor to establishing a good bike fit. Type the name of the structure to see what data it contains.Bike Sizing is intended to assist you select a bike that has a frame size and shape that is appropriate for your anatomical proportions, riding style, and physical condition - including flexibility and any relevant injuries. Note that the model logs relevant data to MATLAB workspace in a data structure called sldemo_suspn_output.
Loading initial conditions in the model workspace prevents any accidental modifications of parameters and keeps MATLAB workspace clean. In the Model Explorer, look under the contents of the sldemo_suspn model and select "Model Workspace". To see the contents of the model workspace, in the Simulink Editor, on the Modeling tab, under Design, select Model Explorer. Initial conditions are loaded into the model workspace from the sldemo_suspdat.m file. To run this model, on the Simulation tab, click Run. Thus, Kf, Cf, and -Lf are used for the front suspension block whereas Kr, Cr, and Lr are used for the rear suspension block. Furthermore, L is thought of as the Cartesian coordinate x, being negative or positive with respect to the origin, or center of gravity. Because the subsystem is a masked block, a different data set ( L, K and C) can be entered for each instance. The differences between front and rear are accounted for as follows. The equations are implemented directly in the Simulink® diagram through the straightforward use of Gain and Summation blocks. The suspension subsystems are used to model Equations 1-3. Right click on the Front/Rear Suspension block and select Mask > Look Under Mask to see the front/rear suspension subsystem. The spring/damper subsystem that models the front and rear suspensions is shown above. The Spring/Damper model used in FrontSuspension and RearSuspension subsystems
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