Description Usage Arguments Details Value
View source: R/other_helpers.R
Once you have a frame design df
you can use this to derive
some metrics that will help gauge the ride characteristics.
1 2 3 4 5 6 7 8 | get_all_the_metrics(
df,
angle_btw_css = 14,
wheel_diameter = 622,
crank_arm_length = 170,
old_spacing = 130,
bbs_width = 68
)
|
df |
A frame design tibble, such as the minimal one drawn by |
angle_btw_css |
Angle between chain stays, in degrees. |
wheel_diameter |
Wheel diameter in millimeters; 622 is the bead seat diameter
of a 700c wheel. To see the effect of the tire width, add 2 x tire width in millimeters
– i.e. specify |
crank_arm_length |
The crank arm length in millimeters. Typical values are 165, 170 and 175 for adult riders. |
old_spacing |
Over-locknut-dimension (hub width) in millimeters. |
bbs_width |
Bottom bracket shell width. It's standard – 68 mm is typical for road bikes. |
Effective top tube length is measured from the center of the point
where the top tube meets the head tube to the center of the seat post,
which in the drawing rendered by add_the_ett_to_the_drawing()
looks like a faint line that continues the seat tube. An alternate way
is to measure it from the top of the head tube to the center of the seat
post. The two are the same if the head tube and the seat tube have the
same angle, because they are just the long sides of a parallelogram.
A named vector
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