What is a PX5?

Have they revamped the PX? Or changed the P5X?

I'd think the P5D is the bike for you, not the P5x

My mistake, P5X

I have a P3X. They are heavy and ideal for shorter races. I ended up getting a P5D as well for the sprints or hilly courses. A little easier to throw it around in these scenarios.

Agree.

I have a P5D. Wanted a PX as a bit lighter than P5X, but would only really use for an IM and I race mostly half’s.

It’s true the P5x is heavy. But it’s only “heavy” in the bike world. Realistically, it’s 3-4 lbs heavier than a similarly high end tri bike. That sounds like a lot, until you realize it’s basically the same weight difference that you get from a set of 24oz bottles when they’re empty vs full. Have you ever considered dumping your bottles in a race because they were so heavy, they were slowing you down? Do you even notice most of the time between when your bottles are full and empty?

You read a million times aero trumps weight, and it does. And again, we aren’t talking 10, 20 or 30 lbs - we are talking just a few. It’s hard to get the weight of the P5x out of your head especially if you have to carry it up the stairs from the basement every time you ride, but you will be fast in 99.999% of the races out there.

Fwiw, I had a BMC TM01 and got a P5x, and was significantly faster. Not just because it’s a faster frame, but the wide range of fitting options it offers allowed me to get into a much better position.

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MS: Exercise Science
Your speed matters a lot, sometimes you need to be very fast, where sometimes you need to breakdown your speed.

I don't know about other people but P5X & P3X look so ugly to me. It's just too much. P-Series and P5D look simple, nimble, fast and they are actually lighter. I would go with p5D or P-Series. They will serve your purpose in Sprint & Olympic distance races more than enough.

The p5x will be faster, because aero testing tells us so. Weight will be unnoticeable (not really much heavier anyway). Wheel weight will matter more with acceleration out of corners and short steep hills. Seems to be opinion that you need a light bike to "throw it around". Fair enough if you're doing Tour de France prologues in town centres. How many sprint and Oly tris are like this, realistically? If you really need something to throw around twisty courses then an aero road bike with clip ons would be faster for most in this scenario.

Benefit of the p5x is that you can change the pad drop in less than a minute if you want to get lower for shorter distances.