narrower rim options
 

Hi, my 600e needs a new rim for the rear and I am wondering if there is any reason why not to go down to a 2.15 from the 2.50. A performance bike such as Ktm 450 has this size so it should be okay shouldn't it ? Do I presume the narrower rim makes inner tube access easier ?

"racebikes" often has narrower rims, and use a narrower tire to handle a bit better ind corners in the dirt.

I would just go stock size.