Tire fitment

[Ron]

I have found a great price for a 180/65-16 rear tire for my 2013 RIII touring. Does anybody know if the drop from a 70 to a 65 will affect how the tire fits on the bike? Clearance shouldn't be a problem, but...better safe than sorry! I know that the drop in size will cause about a 2mph error on the speedometer, but is there anything else I should be aware of? I bought the bike new in 2014 and only have 7k+ miles on the tires that are on it, but it has been sitting for a few years (****ed cancer treatments!!) and I am worried about rot in the original tires. Done with treatments, outcome good, time for some wind therapy!

 

[Bow]

You will notice it when steering around a corner, that's the major thing. And maybe during emergency brake

 

[Kevin frazier]

It will work, a 1/2in lower which may help in driveway. Unless you're pushing hard and love cutting up curves then you may notice as you may drag footboard. Congratulations on beating cancers ass.

 

[MIG]

Good call on new tires. Congrats on kicking ass and enjoy your "Road Therapy"...
-MIG

 

[Chip]

I ran that size on my bike for over 50,000 miles . Michelin makes a great tire that size.

 

[idk]

Congratulations on beating the cancer.

Changing the tyre diameter may affect the ABS. I am not sure how much variation is allowed before an error code pops up.

 

[atomsplitter]

It will work just fine, there are some things you might notice in handling but not significant enough to cause a safety issue. Just to be clear the difference in aspect ratio is only 5% (70% to a 65%) so the tire wall height goes from 126mm to 117mm. That 9mm change isn't major. As far as fitting to your rim, as long as your rim is a 16 inch it should be fine.

From the web:
The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65% of the tire's width. The bigger the aspect ratio, the bigger the tire's sidewall will be.