gt185

I vote for the gt380.

I like the 185. I think the 380 dwarfs making the engine look small.

It tried a Honda 360 tank first, and the tunnel for the frame turned out to be really narrow and it would have taken a lot of work.  If you are willing to cut the top frame tube and make the dual tubes narrower where they join the single top tube over the engine - you will have a lot more options for what tank to use.

I used the GT380 tank on my bike, and I like the look...however the GT185 tank may be a better visual match.  A lot of folks recognize that the tank is a Suzuki tank....and they expect the bike to be much older than it is.  The tank is a bit tall and wide which makes getting it to fit a lot of work - but I can go 160 miles before I need to switch over to reserve.  The only real down side for me is the back of the tank is pretty wide, and most Cafe seats are far narrower than the back of the tank.





It did take a lot of work to make the tank fit on my bike.  Because I needed the top fork yoke to clear the top of the tank - I had to heat and pound the bottom of the tank in order to get the tank to sit low.  I then had to make a notch for the top of the the engine to clear the tank at the cam chain bump on the head, and I had to move the petcock location back about an inch.  I also used the Raptor petcock with the short stem, from the Big Bear quad or something like that.

Ended up going for the GT185 tank. It has a few advantages:
- the Suzuki Savage petcock is an exact swap.  
- said petcock fits without modification as it clears any obstacles on the left side and sits between engine and choke lever pretty much perfectly.

It also takes the LS650 front tank rubbers.  
Also I wanted to be able to have passengers and therefore wanted a smaller tank length wise so we have little more arse room.
Yep the GT185 capacity isn't great but is actually a shade larger than the Ryca tank so I'm sure it will do as a round town bar hopper.

Following in others footsteps (Dave's) with slight variations, used the old tank mounting points and the old seat mount to create a holder for the GT tank hook. Works great:

welded a nut on each side at the front:

voila: