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Tire sizing question

2K views 2 replies 3 participants last post by  klr4evr 
#1 ·
Hoping someone out there can answer a tire question. Recently was given a 130-90-17 rear tire. I have always used a 130-80-17. Will this work? Any problems? Thanks for any help. La mula verde. D:50: own in the Houston Tx. area.
 
#3 ·
The 80 or 90 designation is the aspect ratio of the tire. This is described as a percentage of the tire width.

80% of 130 = 104

90% of 130 = 117

So the difference is 13 mm or just over 1/2" in the height of the tire, measured from the bead to the top of the tread.
 
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