I've got a 200/55x17 and was considering a 210/50x17 Metzeler ME880. Would the wider 210/50 would be the same height as a 200/55?

 

200/55 x 17


The first number is the width of the tire in millimeters, measured from sidewall to sidewall. To convert to inches, divide by 25.4 In the example above, the width is 200mm or 7.87"

The second number is the aspect ratio. This is a ratio of sidewall height to width. In the example above, the tire is 7.87" wide, multiply that by the aspect ratio to find the height of one sidewall. In this case, 200x0.55=110mm or 7.87"x0.55=4.33".

The last number is the diameter of the wheel in inches.

To figure the outside diameter of a tire, take the sidewall height and multiply by 2,(remember that the diameter is made up of 2 sidewalls, the one above the wheel, and the one below the wheel) and add the diameter of the wheel to get your answer.

210/50 x 17- Tire width= 8.27" Aspect Ratio= 210x0.50=105mm or 8.27" x 0.50=4.135"

Therefor the 200/55 has a slightly taller height.

 

INCREDIBLE! I didn't expect such a detailed answer! You Rock! Now to pick your brain some more, do you think any negative effects (such as MPH on speedo) would warrant any concern? A couple off isn't catastrophic. The width isn't supposed to be a problem as I'm told I can run up to a 240 or 250 with sidewalls shaved, but would be completely happy with the 210 ME880.
Thanks,Jim

 

i love my 210, i can really lean................i have a wider rim too so i think its even a tad shorter

 

What are you riding DyNaBoB? Do you have the 6" rim that came stock on the Softail Custom or did you get a wider one? The width of the 200 is fine with me but Metzeler ME880 only has a 200/50 versus the 200/55 my bike calls for. Just curious if the 210/50 ME880 would keep the speedo close to accurate.

 

my spedo is right on with my dads 2000 fatboy.........no my rim is 6 1/2 or 6 1/4 cant remember but its wider then stock........handles great.........heres a pic of rear

 

If you're running a TTS Mastertune you can set the speedo for different size tires.

 

i had the 210 and the speedo was just right with it when i had teh stock ecm. the 210/50 was shorter and made 6th gear better and handled better in rain. the milage was not good. i got 4700 ver 10,000 on the dunlop. as you can see i found the best of both by useing the dunlop on the rear and the metzler on the front. i also went to a low profile on the front and the handling is far better and feels like a sport bike. there is a new tire from dunlop called roadsmart. it has soft sides and hard center. that will be my next one for the rear. i will also try the 130/70 on the front from metzler. 200/50ZR17
http://www.dunlopmotorcycle.com/tire...ire.asp?id=101

 

Jim,

I assume that the 200/55 is a stock Dunlop 401. If it is, it has a 26.07" diameter and the Metzler 210/50 you spoke about is a ME880. If it is the Metzler has a 25.28" diameter. With that said, if you were traveling at 60mph with the Dunlop, the corrected speed would be 58.18mph for the Metzler. Here's a link to a speedometer calculator.

http://4wheeldrive.about.com/gi/dyna...gger_tires.htm

Bottom line: don't worry about it.



Mike

 

Heres the ME880 210. Awsome tires. Looks much better than the stock.