Here is the rep scheme with rest and what it yields.

1-6 reps with 2-5 minutes of rest yields little to no growth and major strength gains.

8-12 reps with 1-2 minutes yields a mixture of growth and mass, or growth and endurance. With 8 reps needing around 1.5-2 mins yield more strength and some growth.

reps of 10 yield pure mass and reps of 12 and higher are for endurance.

Currently I have not used reps more than 15 as I do not see any muscle growth and with as much muscle mass as I have I think if I went for 8 weeks without doing reps less than 12 I would lose quite a bit of mass.

I know how to lift weights more for building mass than I do for endurance sports. I would however recommend that at least every third workout lasting 4 weeks before changing it should probably contain a rep range of 10 reps to make sure you keep your muscle mass. And every once in a while do some heavier sets to maintain muscular strength. Doing reps of more than 20 is using the same muscle fiber type as you do in cyclinig, but it doesn't tend to the other fibers in the muscles that are for shorter periods of time. If one only focuses on one and not the other muscle imbalances can occur which suck to try and get rid of. use the fiber types or lose the benefits of them when you get older.