I have an '06 WG with the factory spokes. I am increasing my front tire size from the factory 80/90/21 to a 90/90/21 (Metzeler). Will I need a different size tube? Or will the same tube work for both tire sizes?

 

Used the same size front tube without a problem..

 

The original tube will be fine, I found that the slightly larger tyre ( I put a Pirelli Night Dragon on) made the front of the bike ride far better on a rough road.

 

Thanks bros.