[cyberdon]

How big of a tire can you safely put on with the stock swing-arm? Thanks

 

[allsmiles]

Metz 210, but it will wear fast in the middle.

 

[cyberdon]

I'm ignorant, but why is that?

 Metz 210, but it will wear fast in the middle.

 

[bigr]

I'm ignorant, but why is that?

Because the 210 tire is more of a "V" shape on the stock rim and the 200 tire is more of a "U" shape. The 210 will have a smaller contact patch and will wear out faster.