With each bike you own, you learn a little more about what you want from a bike. Its kind of like
dating. The kind of bikes I ride now bear little resemblance to the ones I first had when starting
out in triathlon. I say that only so you don't go through buyer's paralysis. Do some research, buy a
bike. Know that it won't be perfect, no matter what you do, and that within a year you'll probably
find things on that bike that you'd want different in your next bike. This will happen with every
bike you buy, even custom made ones. Each time you'll get closer to your ideal, but you'll never
really get there.
For your first bicycle to be used for triathlons, as opposed to your first tri-bike, you would do
well to consider comfort over absolute speed factors. There are super duper fast aero bikes that are
also comfortable, but I'd bet more people than not haven't found that bike in their search. Those
aero bikes that are super comfy are also super expensive. You need to be comfortable to enjoy
riding, so that you'll look forward to it and do it more and more. What I looked for in my first tri
bike was a bike that looked like it was fast. It was, but it was terribly uncomfortable, and these
days I know that if I want to race on a bike like that, fine, but to train, I'd better have a comfy
road bike. So that is what I have.
There are way too many factors involved in the bike buying process to discuss in one message; fit,
materials, geometry, gearing, etc... If you have a budget in mind, find the bikes that fit in that
budget. Look at what your friends are riding, compare them, ride them if you are able. Roadies ride
road bikes for a reason, they're fast and comfortable for long training rides. Almost 100% of your
riding time will be training on roads, probably. A road bike can be adapted to racing in triathlons
just fine.
I'm no speed demon, but here are a few personal examples that might help. My first Ironman, was on a
Softride tri bike. My second was not, it was on a road bike, a Calfee. I was 90 minutes faster off
of the bike. Sure there were other factors, but none so clear to me as I was climbing those
mountains as that road bike was. Later that year I had the fastest bike split in my AG and one of
the top 10 splits at a sprint race of 1000 people on that same bike. I'd done that race before on
that Softride and on a Litespeed Blade but never had a faster bike split (24mph). I give you these
examples just to let you know that its OK to ride a road bike, and to not get bogged down in "tri-
geometry".
Find a comfortable, reputable, durable bike in your price range. Stick with brand names for entry
level bikes, they will be built best, IMO. If you make the wrong choice in gears, handlebars,
stems...it can all be dealt with for minimal expense.
I'd say, in a nutshell - don't worry about looking like a triathlete, talk to your friends, go to
local bike shops, find other tri folk in your area, and see what they're riding. If you stay with
the sport, in a few years that bike you worry about now will be a distant memory. I can recall what
my first one looked like but not the name!