How many k's do you get to a tank?

[Hitcher]

The Zrex has a 17 litre tank. Onto reserve at about 250km (plus or minus), breathing fumes at about 300km.

[Posh Tourer :P]

So far about 23,000km and still on the original tank!!!

Got ya there - 80,000kms, but we have had to repaint the tank once.

I normally get 270kms to reserve, and 300 is safe, fill up with 20L 15kms/L That is all commuting, and I'm not nice to it either.

Its a 24L tank, one tap and maori reserve.

On the open road, I'll happily get 350kms to reserve, maybe 400 to a fill.
20kms/L

[campbellluke]

1991 GSX250s Katana replica.

17 litre tank. 3 L is the reserve.

I get between 200-220 km , before I hit the reserve

[MrMelon]

I've been getting 200km pretty reliably before hitting reserve lately. Usually at about 220km I fill up with 15 litres. It's mainly commuting, so maybe touring would bet a bit better mileage.

[Magua]

10k's to a litre. I'd do something about it but I've got no money.

[scumdog]

10k's to a litre. I'd do something about it but I've got no money.

Are you sure? - I assume it IS a bike you're talking about?


My 302 V8 does just under that on a trip!!!!

[カワサキキド]

So far about 23,000km and still on the original tank!!!

]

The zxr got up to 53,000 before it had the tank replaced.
My brother only got about 50km's out of the gpx's tank.

[Artifice]

on my gsxr400 i get 13.9Km/L. its a little rich on the bottom end but im not entirely sure thats the whole story. its got an arrows exhaust and god only knows about the jetting. its a 16litre tank so that make hmmm 220 km's to a tank including the reserve.

[Zapf]

I have been mostly using my bike to kane across town to get to uni, and have been getting from 230 to 270 km's from my 15l tank.
250/15= 16.67 km to a litre.

Ermm this is the thing I don't understand... I also have a Honda jazz (cage) and that does around 18~19km/L putting around auckland. Why does a car get better mileage than a bike? Even when the bike is like 1/4 the weight...?

[thehollowmen]

I did 200 km on $6 ... a bit around town in chch and then highway speeds back...

really gotta change that rear sprocket though to get a nicer top end speed

[Mr Skid]

Ermm this is the thing I don't understand... I also have a Honda jazz (cage) and that does around 18~19km/L putting around auckland. Why does a car get better mileage than a bike? Even when the bike is like 1/4 the weight...?

I'm not sure if it's a valid comparison to make, but if you compare the power output of your bike - 33hp or 24.27kW iirc from 250cc displacement, with that to the Honda Jazz which makes 81 kW from 1500cc displacement, then if your car had the same power/displacement ratio as your bike it'd be a 145kW fire breathing Honda Jazz.

Maybe it's not an entirely valid comparison between a 2 pot and a 4 pot engine, and it's quite possible that these calculations aren't scalable with displacement, but it would suggest to me that your bike is more highly tuned than your car, which I would assume would account for the higher fuel consumption.

Technology differences would be a factor as well. The VTR is a twin carb setup (iirc) while the Jazz is a fuel injected variable valved thingy, which would tend to increase it's efficency.

I'd think that from a marketing perspective, Honda would be more concerned with fuel consumption figures in selling a car than they would be in selling a bike.

Can anyone offer any alternative perspectives / debunk my logic on this?

[Magua]

Are you sure? - I assume it IS a bike you're talking about?


My 302 V8 does just under that on a trip!!!!

FZR250, I don't why it gets shit economy. Leak? Mixing? Carbs? No idea.

[matthewt]

It's got to be something to do with how they changed the power profile for the Brutale. It's been changed so its got more grunt in the midrange hasn't it Matt?

Most likely that will be the cause. They are the same engine just with different tuning. Part of the problem is also that they geared it for 250kph, so putting along at 100 is over 5,000rpm whereas the F4 would be sitting on 4,000rpm.

I'm hoping to get a new injection chip before the Big50 ride at New Years so that is meant to give an extra 10% or so.

I don't mind paying for so much gas but the reduced range is a hassle. (sounds like a good reason to trade it on a 1000cc f4! )

[rodgerd]

About 16 km/l around town, and up to 20 km/l with open road riding.

(And about 13 km/l when running two cylinders with a cracked ignition coil...)

[rodgerd]

Ermm this is the thing I don't understand... I also have a Honda jazz (cage) and that does around 18~19km/L putting around auckland. Why does a car get better mileage than a bike? Even when the bike is like 1/4 the weight...?

Fuel injection can make a big difference - for example, the SV650 reviewed in KB was making better mileage than my Bandit 250, depsite the fact twins are normally greedier than fours economy-wise.

Also look at how hard you're working the respective engines. How quick do you get to the speed limit from the lights on your bike, versus your car, for example? And don't forget that a well-designed car has a much lower coefficient of drag than all but the most aerodynamic bikes, so cruising at a given speed may require less work by the engine.