Originally Posted by sailah
With your fab skills, I'd seriously consider a tank from scratch. I've fought with modifying tanks before and usually the result is less than stellar.
You also could consider redoing the subframe and putting a couple gallons there by replacing the entire thing and plating in some tubes. I tried this on my last build and got 2.16 gallons under there. I'm thinking about making a new one with 4 gallons as it's my only tank.
You could make a slim tank on top with 4-5 gallons and get 3 under the seat.
To make it from scratch I dont have any sheetmetal treatment machinery available, so it will be quite angular. Easier to modify some existing tank I think. Also was thinking to shove all the electrics inside the subframe, and use 950 plastics over there. BMW F800 has nice set up for a tank, but that's where my silencers will be.
Your CBR has only 2.16 gallon tank - was wondering will you add something on top of the engine like your FZ1 has?