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               Originally Posted by 
               Bandito 
                
               
             
              Hi Guys N Gals! Bumping this thread, newbie needs info on inner tubes please? Been searching for a rear inner tube for the Xt660R, where do you source your 130/80-17 rear inner tubes from, please? Been to a couple of motocross shops they mainly do inch size tube. Would equivalent tube be 4.00/4.5" or 4.5/5.0" or bigger? Or just the best ones /best priced metric tubes to buy, please? Thanks
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         Plenty of places you can get metric 130/80x17 inner tubes. Infact they cover a range of sizes.
         
        
 Here's one to try - 
        
http://tyresalesuk.co.uk/index.php?main_page=product_info&cPath=26_27_35&pr oducts_id=119#.U4BvGSqF93g
         
         All I'd add is, it is worth getting a branded tube, the cheap economy ones I've tried over the years tend to be a little too porous and need constant re-inflation.