05-19-2014, 09:26 PM
looking at the side profile of Rockys bike in his" Finally burned thru a tank of fuel" thread it definitely looks like a 3.9 tank to me.
see post 5
http://cb1100forum.com/forum/showthread....light=blue
4.6 tank for comparison
[url=http://smg.photobucket.com/user/theferret111/media/CB2025_zps4277abb9.jpg.html]![[Image: 91528b15889156e9b9447df45e5b891c.jpg]](https://cb1100forum.net/forum/uploads/imp/201405/91528b15889156e9b9447df45e5b891c.jpg)
the 4.6 tank is more humped in the rear and knee indents are shaped differently, more rounded less angular
see post 5
http://cb1100forum.com/forum/showthread....light=blue
4.6 tank for comparison
[url=http://smg.photobucket.com/user/theferret111/media/CB2025_zps4277abb9.jpg.html]
![[Image: 91528b15889156e9b9447df45e5b891c.jpg]](https://cb1100forum.net/forum/uploads/imp/201405/91528b15889156e9b9447df45e5b891c.jpg)
the 4.6 tank is more humped in the rear and knee indents are shaped differently, more rounded less angular
