Don't non-sportspeople who receive TRT, including transdermally, get tested for unusually high hematocrit? They're compelled to donate blood whenever their RBC is too high (because it's a health risk). Besides recovery, elevated RBC would be an ergogenic aid for cyclists.So if we optimistically use 10% to make the maths easy, a daily sachet of 50mg is going to give you a weekly effective dose of just 35mg. You also have to factor in that as soon as you start introducing exogenous testosterone the body senses this and responds by reducing production of its own endogenous supplies. This suppression isn't an issue in individuals who are already suppressed through age, illness or other stresses such as high volume endurance training, hence the use of Testogel as a therapeutic aid....but true sports performance enhancement is another matter.
Bodybuilders typically seek supra-physiological blood serum testosterone, but cyclists probably just want to keep in the normal/upper normal range, despite high intensity/volume training and under-eating. I don't believe there's evidence that supra-physiological test levels assist in endurance performance.