How to read tires.

BranNwebster

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I was wondering if someone could tell me what the tire specs mean.

120/70 ZR17M/C (58W)

180/55 ZR17M/C (73W)

I know what the sizes are but not the letters or the 58W and 73W
 

FZ6 Tas

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I was wondering if someone could tell me what the tire specs mean.

120/70 ZR17M/C (58W)

180/55 ZR17M/C (73W)

I know what the sizes are but not the letters or the 58W and 73W

180/55 ZR 17 (73W) TL
180 = tyre width in mm
/55 = ratio of height to width = 55 : 100
Z = Speed rating [see table above]

R = radial construction
17 = rim diameter in inches
TL =tubeless
(73) = load index
(W) = > 270 km/h

I assume M/C means motorcycle
 
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