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Tyre Dimensions: 21 inch

21 inch

Graph

Metric Dimensions

21 inch size(s) in mm (Jump to Imperial Table)
size sidewall height ID
inner diameter
OD
overall diameter
circumference ride height
overall radius
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275 25 2168.75mm533.4mm670.9mm2107.69mm335.45mm
295 25 2173.75mm533.4mm680.9mm2139.11mm340.45mm
255 30 2176.5mm533.4mm686.4mm2156.39mm343.2mm
265 30 2179.5mm533.4mm692.4mm2175.24mm346.2mm
275 30 2182.5mm533.4mm698.4mm2194.09mm349.2mm
285 30 2185.5mm533.4mm704.4mm2212.94mm352.2mm
245 35 2185.75mm533.4mm704.9mm2214.51mm352.45mm
295 30 2188.5mm533.4mm710.4mm2231.79mm355.2mm
355 25 2188.75mm533.4mm710.9mm2233.36mm355.45mm
255 35 2189.25mm533.4mm711.9mm2236.5mm355.95mm
305 30 2191.5mm533.4mm716.4mm2250.64mm358.2mm
265 35 2192.75mm533.4mm718.9mm2258.49mm359.45mm
275 35 2196.25mm533.4mm725.9mm2280.48mm362.95mm
245 40 2198mm533.4mm729.4mm2291.48mm364.7mm
295 35 21103.25mm533.4mm739.9mm2324.46mm369.95mm
265 40 21106mm533.4mm745.4mm2341.74mm372.7mm
295 40 21118mm533.4mm769.4mm2417.14mm384.7mm
255 50 21127.5mm533.4mm788.4mm2476.83mm394.2mm
285 45 21128.25mm533.4mm789.9mm2481.54mm394.95mm

Imperial Dimensions

21 inch size(s) in inches (Jump to Metric Table)
size sidewall height ID
inner diameter
OD
overall diameter
circumference ride height
overall radius
 
275 25 212.71 inches21 inches26.41 inches82.98 inches13.21 inches
295 25 212.9 inches21 inches26.81 inches84.22 inches13.4 inches
255 30 213.01 inches21 inches27.02 inches84.9 inches13.51 inches
265 30 213.13 inches21 inches27.26 inches85.64 inches13.63 inches
275 30 213.25 inches21 inches27.5 inches86.38 inches13.75 inches
285 30 213.37 inches21 inches27.73 inches87.12 inches13.87 inches
245 35 213.38 inches21 inches27.75 inches87.19 inches13.88 inches
295 30 213.48 inches21 inches27.97 inches87.87 inches13.98 inches
355 25 213.49 inches21 inches27.99 inches87.93 inches13.99 inches
255 35 213.51 inches21 inches28.03 inches88.05 inches14.01 inches
305 30 213.6 inches21 inches28.2 inches88.61 inches14.1 inches
265 35 213.65 inches21 inches28.3 inches88.92 inches14.15 inches
275 35 213.79 inches21 inches28.58 inches89.78 inches14.29 inches
245 40 213.86 inches21 inches28.72 inches90.22 inches14.36 inches
295 35 214.06 inches21 inches29.13 inches91.51 inches14.56 inches
265 40 214.17 inches21 inches29.35 inches92.19 inches14.67 inches
295 40 214.65 inches21 inches30.29 inches95.16 inches15.15 inches
255 50 215.02 inches21 inches31.04 inches97.51 inches15.52 inches
285 45 215.05 inches21 inches31.1 inches97.7 inches15.55 inches
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