Looking for a larger tank for my '87 XR600, but don't want something that is so big/wide that makes it a a bigger pig than it already is - especially knee room. I have not seen any of these tanks, so looking for comments on them. Anyone have pics? I also noticed that Clark makes a 5.0 and IMS makes a 4.0 and 4.7 gal tanks. I noticed that IMS says that it tanks fit all years, but the Clarke lists two different tanks for '87 & older/'88 & newer. I know the seats/side covers are different starting with '88. Thanks for any help.