A comment (that went into pages on the -33). Squats are more full body. Form is more important.
You may not want that for improving cycling power.
You may want a range of motion that is closer to the pedal stroke, not what will make you look the best - in the gym or beach.

Many times I have seen cycling specific training be corrected by professional trainers. They just don't know and often think the lifter just does not know.
It is one of those things everyone is more happy to educate others on than just do.

While on a roll...the training I saw (and paid for), while 3 days a week, was rarely max effort. The next day was always for riding. Typical sets were 16 rep, 12 rep, 8 rep to finish (something left in the tank) 2-3 days and 12 reps, 8 reps 4 reps to failure on a heavy day that would be at most 1X a week in fall.
Combined with miles the next day, there was little mass gained.
But lots of power.