Groupset Comparator

Plot two drivetrains side by side. The coloured band shows where they match — and where they diverge.

Road BikesMountain BikesGravel Bikes
A System A
B System B
Development Comparison
Metres per revolution · hover dots for details
System A big
System A small
System B big
System B small
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Gap strip
<4% — close match
4–9%
9–15%
>15% — wide gap
Lowest Gear (Big Ring)
— / — m/rev
Highest Gear (Big Ring)
— / — m/rev
Avg Step (Big Ring)
— / — %