Yep and here's the link to replace your exsisting tank. There are others that convert the tank cover into a tank, look at this one. None of them are cheap. There may be others, these are just what I have seen.
wow they are 671 dollars.a bit more then I wanted to spend.I also want to get a 17 inch back rim and radial tires.and I don't want to run into a problem with clearence
Thats a "loaded" question. There is .8 gal in reserve. How far depends on your fuel mileage. I get over 40 mpg so 120 to the light and another 30 on reserve.
There are a lot of options for larger tanks and you could even have yours welded up to make it larger but be careful to only enlarge certain areas since you may not be able to get it back in (or out) or even put on your side covers.
does anybody know if there is a larger fuel tank than the measley 4 gallon stock tank? i get about 100 miles out of the stock and would like to ride for a longer stretch before refueling. thanks for any replies