I'd agree with Rory on the technical difficulty, but then the trick with the enduro is you don't pick when to break & you'll be riding for 4-5 hours with 4-5 stops at a decent pace, which is why Chop's advice is so good

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I'd add that Banana's are good for lot's of mineral's & an Isotonic mix in your camelbak is a good thing.
Always remember to refuel, even if you are behind on time.
Quitting smoking makes a big difference, I was pack a day & knocking it off has done wonders for my endurance.
I reckon go for it, just remember to relax, ride intermediate & don't try & win it in the 1st special test

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Oh, you're allowed pit crew, but only in the pit area & they can refuel you & the bike.
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