Oh, I've just had an email from the Bennetts representative in the Congo.
He says I can put my fuel in whatever I like

(ignore the last comment)

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Find out details of my 2011 trip to Siberia on a lightweight dirtbike:
www.brighton2expeditions.co.uk

SMARTARSE....

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The electric monk always has faith.

I'll bet I can get Bennetts in the UK to agree to that too. There again, they think Morocco is in the EU, a leading link fork is some sort of electrical device and a Moto Guzzi is a Chinese grey import . (All true conversations I've had with their call centre. Devitt DA think a Ural has a built in intercom too????).

Big tanks are seriously overpriced. I added 8 litres for an extra 120 miles to my old F650 (carbed) for almost £400. That's £3 per mile over the bikes standard range. Norman Hyde want £800 for 2 gallons extra/90 miles/£8.80 per mile for the Bonneville. My auxilliary tank cost £70 for 10 litres and 100 miles on the Bonneville, or 70p per mile. A 10 litre jerry can would be down at 15p per mile with the hassle of having to stop and empty it into the bike.

The Acerbis tank broke it's fuel tap after a year (£30). The Aux tank is all welded, but I supose the in-line tap could go (£14). The jerry can is disposable, but they tend to last forever. The bladders replace the jerry cans very well, but take up a lot less space when empty.

To me they key is how often you use the range. I can easily go 200 miles without stopping, so a 120 mile tank is useless in Wales on a Sunday. I have come close to running out a 430 mile range F650 and a 420 mile range Bonneville two or three times. I can justify £150 worth of Aux/jerry can/bladders, but £400 of plastic, never again.

Andy