Bicycle Gear Inch Chart

Have fewer cogs or chainrings? Just set the no-applicable values to zero.

Trail Calculator (Bicycle Geometry)

Here lies a Tableau viz to calculate trail (both geometric and mechanical) and wheel flop. Pneumatic trail is calculated using the classic formula:

([Wheel Radius] * COS([HTA] – [Rake]) / SIN([HTA])

https://public.tableau.com/views/BicycleGeometryTrailCalculator/TrailCalculator?:language=en&:retry=yes&:display_count=y&publish=yes&:origin=viz_share_link