Triathlon can be an expensive hobby/sport. Most of us are not getting paid for this. Sadly.
For my first tri in 2003, I used my road bike, borrowed a friend’s wetsuit right out of a California surfer's closet circa 1983 (think thick black neoprene with pink and purple polka dots and random colored stripes and lightening bolts. Yeah, everyone knew who this newbie was) and used a pair of old Nike Pegasus.
Side note about my first tri: I got out of the water (which I didn’t train for - see this post about how short the swim portion is for your day) and it was really easy to find my bike. It was one of four still left in transition. That’s right, when (finally) leaving the swim exit I turned around to see 3 other swim caps left in the water. One of the swimmers decided not to continue and was sitting on a kayak with a lifeguard. Passing my share of people on the bike and not drinking anything from the water bottle I had on the bike, I felt like I was holding my own on the run. Only to be passed by a man who had the body marking with a 72 on his calf. A man who was 40 years older than me was making this triathlon look easy. Two things happened right then and there. One was that I figured out who I wanted to be when I grew up; that guy! The second thing was in order to do this when I’m 72, I should consider training.
Notice I didn’t say I needed to buy new shoes or race wheels or an aero helmet or drop the equivalent of several mortgage payments on a new bike. Would those have helped? Sure. Triathlon is a sport where keeping your ability exactly as it is you can buy speed.
For all those of us who enjoy this triathlon lifestyle and aren't independently wealthy, all is not lost. There is however some bad news but there's also a lot of really good news.
Let's get the bad out of the way. If you own a road bike and the playing field is completely level, a triathlon bike will be faster than a road bike. Now let's be clear on a few things about this road v tri bike conundrum. There are a lot of other variables like how hilly the course is, number of climbs and descents as well as wind conditions. There are circumstances when a road bike does have its merits. Is the course hilly? Roadie, for the win. The now defunct Ironman Blue Ridge 70.3 had almost 1,700 feet of climbing in 5 miles. My legs were burning and several, ahem, dozen road bikes passed me on that climb. I was really wishing for my road bike. But what goes up, must come down and there are about 8 miles of some serious descending. Did I catch some of those roadies on my tri bike? Yes. All of them? Not at all.
And that's where the good news comes in. It's about the engine propelling that bike = YOU! And the amount of power you're generating based on a proper bike fitting. You don't have to spend a boatload of money on a triathlon-specific bike since for the most part a road bike can do what you need so long as you train properly and are comfortable on that bike. BUT do yourself a favor and pay for a bike fitting.
End note: I returned to the same triathlon a year later and claimed my first podium spot nabbing 3rd in my age group. Sadly for me, I never saw that 72 year old guy again. Because I have him to thank for my 20-year stint competing in triathlon.