Cyclists often worry that their heart rate and blood pressure is too low. As in, 100/60 and 45 bpm resting heart rate.

I'm close to your height, I weigh 150 and I consider myself somewhat overweight to be a good cyclist. My ideal cycling weight is 135. It's not that big of a deal on flats, but I am perceptibly too slow on hills compared to other serious locals.

As far as I know, if I were to give up cycling and take up bodybuilding, I can get to 165-170 without steroids by improving my muscle mass and keeping my body fat percentage as low as possible. Anything beyond that means excess fat or steroids.