I'm shopping for some new tires for my Aero and found this really helpful page:
http://www.weeksmotorcycle.com/tire-siz ... chart.html
It has lots of info on sizes, load ratings, code deciphering and more.
Tire Size Conversion Chart
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Tire Size Conversion Chart
1985 Honda Aero 50 5k
Re: Tire Size Conversion Chart
what the chart doesn't tell you is you can do a direct front rim swap with a elite-s you will have to use the larger 'S' brake pads, also the speedo worm gear, plus certain tubes for a perfect ride 

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Re: Tire Size Conversion Chart
Thank you, I found it to be helpful.coolbeans wrote:I'm shopping for some new tires for my Aero and found this really helpful page:
http://www.weeksmotorcycle.com/tire-siz ... chart.html
It has lots of info on sizes, load ratings, code deciphering and more.
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Re: Tire Size Conversion Chart
I came across this info before,then couldn't find it again.I think this has more than I found,Thanks for the posting.Carp
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Re: Tire Size Conversion Chart
You're welcome...I found it especially helpful in getting a handle on the inch size of the metrics but also the fact that all inch size tires are as tall as they are wide (i.e. round and not oval profile just like the 90/90)
1985 Honda Aero 50 5k
Re: Tire Size Conversion Chart
Also the largest tube size that you can use is 2.50-10 the aero speedo cable can be used on the s -rim.
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Re: Tire Size Conversion Chart
that chart doesn't match the sizes there giving. 80/90 the first number is the width. 80mm converted is 3.14960 inches which is not 2.50-2.75 inches.all of the numbers given is wrong.
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Re: Tire Size Conversion Chart
Greetings:
90/90 does not mean Height = Width.
The first number is the tire's nominal width. The second indicates that the tire is 90% as tall as it is wide, or 81mm tall. The height of the 90/90 Pirelli is therefore 81/25.4mm = 3.19 inches. Once mounted, the 90/90 tire diameter is just under 16.5" . This is confirmed by my own direct observation.
The 3.50 tire is quite a bit taller than the 90/90 - a true 3.5", or total tire diameter = 10 + 3.5 + 3.5 = 17" Setting the two tires mounted side-by-side also confirms this.
90/90 does not mean Height = Width.
The first number is the tire's nominal width. The second indicates that the tire is 90% as tall as it is wide, or 81mm tall. The height of the 90/90 Pirelli is therefore 81/25.4mm = 3.19 inches. Once mounted, the 90/90 tire diameter is just under 16.5" . This is confirmed by my own direct observation.
The 3.50 tire is quite a bit taller than the 90/90 - a true 3.5", or total tire diameter = 10 + 3.5 + 3.5 = 17" Setting the two tires mounted side-by-side also confirms this.
Wheelman-111
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"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Re: Tire Size Conversion Chart
Senor Rueda Hombre,
As always, thanks for the kind input and info....looks like I still have some studying to do.
As always, thanks for the kind input and info....looks like I still have some studying to do.

1985 Honda Aero 50 5k