Less power - more speed?

bengwatson

Hi everyone,

I did my first half Ironman in January. On the day I was a bit disappointed in my bike time of 2:49.

I had an average power rating of 186 watts. I was looking at a few other friends on strava and they did quicker times Like 2.40 with average power of 171.

also 229 and average power of 173.

it was a flat course- is this down to better efficiency or gear?

thanks!