ADV tank installation on F650GS / F800GS for extended range

[Against The Wind]

If you ride the F658gs at a steady 55 mph in 6th gear you will see 65 mpg.

[bobobob]

Originally Posted by Against The Wind

If you ride the F658gs at a steady 55 mph in 6th gear you will see 65 mpg.

Yeah the F650 gets great mileage, too, especialy for an 800cc motor.
If I was going to do any 2 up, the extra 20bhp and six speed would be nice to have.
Having a hard time justifying an extra $2,300 for those two features.

[roundtripping]

Originally Posted by bobobob

Yeah the F650 gets great mileage, too, especialy for an 800cc motor.
If I was going to do any 2 up, the extra 20bhp and six speed would be nice to have.
Having a hard time justifying an extra $2,300 for those two features.

Well, considering you already get 6 speed with a 658 you're down to one feature You may also find the torque curve of the 658 is very two-up friendly.

Sent from my SAMSUNG-SGH-I727 using Tapatalk

[jttele]

Just went thru the first full tank(s) of fuel with the new ADV tank, and I ran dry at 317 miles. The reserve light came on at 255 miles and then I got 62 miles out of the reserve. I'm showing an average of 47-48 mpg. The only negative I've found so far with the tank is it DOES NOT like to be topped up. Since there is no filler neck per say on the ADV tank, if you try to top it up after it gets close to the top, you will overflow it very easily. I just learned the hard way and the overflow goes down the top plate and spills on the gap at the back of the seat. Anything in the storage area there is doused in gas. Not a problem after I cleaned it up and now I know better. I'm hopeful my school of hard knocks will help somebody else here from doing the same thing! Anyway, the extra range is great and I'm overall very happy with the tank now that I'm adjusting to it.

[GB]

So that's 507 km! Was this a straight highway run, or was it mixed city and highway riding? I'm planning a straight highway run soon, so we'll see what I get mileage wise.

[jttele]

Originally Posted by GB

So that's 507 km! Was this a straight highway run, or was it mixed city and highway riding? I'm planning a straight highway run soon, so we'll see what I get mileage wise.

It was mostly on my commute to work that's probably 60% highway run and 40% rural back roads.

[bobobob]

[Happycamper]

Originally Posted by FORE!

Hey guys,

Just to keep you up to date, I am sourcing the proper spacer parts and longer bolts. As soon as I have them and they prove functional, I will send them out. Shouldn't be later than the end of this week. Thanks for your patience!

Scott
AdvTank

Scott,

Any closer? My bike is at the dealer and they will not install until they have the parts. I was planning on picking up the bike from them this Friday

[HappyHighwayman]

What's a "658" vs. 650?

[FORE!]

Originally Posted by Happycamper

Scott,

Any closer? My bike is at the dealer and they will not install until they have the parts. I was planning on picking up the bike from them this Friday

My manufacturing guy took way longer than expected to build the spacers. They are on their way to your dealer and will be there by Friday.

[WoodWorks]

Originally Posted by HappyHighwayman

What's a "658" vs. 650?

Same thing. Some people use 658 to differentiate the twin from the old F650 single.

[GB]

Originally Posted by FORE!

My manufacturing guy took way longer than expected to build the spacers. They are on their way to your dealer and will be there by Friday.

Thanks Scott for the notification here and by email. I'm doing my first long trip tomorrow and will report back on the range. If fuel continues to rise at the rate it's rising, the adv tank will pay for itself just by its holding capacity of cheaper fuel week to week. Gas is up over 20 cents a liter since January.

[GB]

I went for a long day's ride in rural western NY state. I was averaging around 4.7 liters/100 km, or 50.4 mpg. The ADV tank holds 1.7 gallons, if you put the bike on the center stand and fill up slowly so you don't overfill it. I was riding mostly backroads speeds ranged from 35 to 65 mph. The ADV tank will yield 79 miles of added range, or about 126 km.

So, for the day with this type of riding, I would probably run out of fuel by around 525 km, or 326 miles. Pretty good.

On the GS, you need to fill up with the bike on the side stand, then put it on the center stand to fill up the adv tank, if you want to get every last bit of fuel in there. It's rated at 1.6 gallons, but I was able to fill it up to 1.7 gallons.

[bobobob]

Any news about the large Givi case on the ADV tank bracket?

[GB]

Originally Posted by bobobob

Any news about the large Givi case on the ADV tank bracket?

It's not going to work. I tried.. The plate needs to be positioned midway thru the advtank rack in order for the quick release red button to be accessible. I thought I could still mount it, then attach RAM ball mounts to the back of the plate and attach them with RAM arms to U bolts attached to the passenger grab handles.. It is doable, it won't be pretty.. so I didn't do it. I did rig it up and it looked goofy and it limits the rider's space to being confined to the front half of the seat.