The xterra series is a fun off-road triathlon, but you should be a
strong mtn biker before trying it. I did the Hawaii one, and it was a
blast, I ended up completely covered in mud. And the trail run was
straight up and straight down and it crushed me.
http://www.xterraplanet.com/race/
If there is no fat tire divition in the tri's you are doing, then by
all means switch the tires. I would not do much beyond that. (I already
had clipless pedels on the mtn bike when I was riding it in road tri's)
If you are in any sort of shape you will almost certainly pass a couple
of people on "fast" road bikes. That feels pretty good.
roger
metallifried said:The main reason not to do this, which I didn't really see mentioned
anywhere, is the fact that road bikes weigh almost nothing compared to
mountain bikes, primarily due to the size of the frame.I would try to find a race that's done on a mountain bike trail - I'm
sure that they exist. Failing that, as long as you're not doing a
half-iron or more you should be fine.
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