NM_KDX200

Member
Dec 29, 2002
441
0
Basically:

19" is stiffer and gives a better cornerning feel.

18" has a bit more sidewall height and is a little more pinch-flat resistant.
 

dirt bike dave

Sponsoring Member
May 3, 2000
5,348
3
19" tire is lighter. In theory this can help with suspension performance. Also, every pound counts on the marketing brochure.

The lower profile 19" tire has an advantage cornering on hard pack.
 
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