Performance Tools Dashboard
A expanding set of tools designed to optimise your track cycling experience.
Gear Ratio & Lap Time Calculator
Quickly determine gear rollout and speed at any cadence. Adjust for tyre size, track length, and preferred speed units, then project lap and race times with a customisable start lap. A simple tool to compare setups and plan pacing for different velodromes.
CdA / Power / Speed Calculator
Input any two values to calculate the third. Adjust advanced settings like rolling resistance, system weight, drive train efficiency, and air density to refine accuracy and compare aerodynamic performance.
Primary Variables
When two inputs are filled, the remaining field is calculated.
Advanced Settings
Chain Link Calculator
This tool works out the minimum and maximum even number of chain links that will fit for a given gear and frame setup.
Chain Link Calculator
Enter chainring, sprocket, chainstay and dropout. Outputs are minimum and maximum even-link counts that will tension within your dropout range, plus gear inches.
Longboi Stem Size Calculator
Calculate the correct size Longboi Stem and steerer tube spacers required to achieve a desired fit.
Instructions
Enter your frame geometry, target handlebar position, and handlebar dimensions. Results show the top 3 stem and steerer tube spacers configurations that best matches the target handlebar reach and stack position.
Use this diagram to map a, b, c (reach) and x, y, z (stack).
Frame
Target handlebar position (relative to BB)
Handlebar geometry (from stem clamp)
Results
Results will appear here.
