u/AinOrlando

I 29M started training (mostly Z2 long rides) this March (used to be a competitive crit racer 10 years ago) and did the bike leg of 70.3 Chattanooga last Sunday as I get ready for triathlons this season (a couple of sprints, Olympic with my target race being 70.3 NC in October)

As I was waiting for my teammate to arrive, my HR was ~110. I felt great! However, as soon as I started running to mount my bike, my HR spiked to 170 and basically stayed that way (or higher) for the entire race.

I felt really strong and was able to ride at 19mph for the full distance. This is significantly faster than my Z2 rides (~15mph, still building that engine), but it felt very natural.

My question is: does this happen to you? Was I just pacing much harder than I should have?

From miles 1-30: I had some anxiety about my HR and thought I was going to burn.. but it never happened.

From miles 30-finish: decided to not leave anything on the tank and just rode as hard as I could.

Naturally, I need to adjust this approach for when I start doing actual triathlons… my initial plan was to settle in upper Zone 2 and increase little by little.. but my HR had other plans.

Thank you for your advice!

Title. Got a professional fit and the result suggests the frame is 1 size too large. This bike is a size 54, I was recommended a size 52. I am 5’7 with 30.7’ inseam.

I feel uncomfortable in this bike. My crotch area gets numb frequently and easily (within 5 minutes of riding). I also find it very uncomfortable to be in the aero position. Trying to determine if this is a flexibility problem or just an incorrect frame size. I am considering getting a smaller bike.

Thank you.

Edit: added clarity on the bike size