Weil ich es immer wieder vergesse und alle Jubeljahre wieder brauche, hier eine Tabelle der gängigen Radumfänge, um den Fahrradcomputer zu kalibrieren.

20 Zoll 40-406 = 1530 mm
20 Zoll 47-406 = 1550 mm
20 Zoll 54-406 = 1590 mm

24 Zoll 47-507 = 1860 mm
24 Zoll 54-507 = 1920 mm

26 Zoll 25-559 = 1940 mm
26 Zoll 35-559 = 1980 mm
26 Zoll 40-559 = 2000 mm
26 Zoll 47-559 = 2020 mm
26 Zoll 50-559 = 2040 mm
26 Zoll 54-559 = 2080 mm
26 Zoll 57-559 = 2100 mm
26 Zoll 60-559 = 2150 mm
26 Zoll 37-590 = 2090 mm

28 Zoll 20-622 = 2110 mm
28 Zoll 23-622 = 2120 mm
28 Zoll 25-622 = 2130 mm
28 Zoll 28-622 = 2150 mm
28 Zoll 30-622 = 2260 mm
28 Zoll 32-622 = 2160 mm
28 Zoll 35-622 = 2185 mm
28 Zoll 37-622 = 2190 mm
28 Zoll 40-622 = 2220 mm
28 Zoll 42-622 = 2230 mm
28 Zoll 47-622 = 2280 mm
28 Zoll 50-622 = 2280 mm
28 Zoll 54-622 = 2295 mm
28 Zoll 60-622 = 2350 mm

27 Zoll 32-630 = 2180 mm

28 Zoll 40-635 = 2240 mm