>>2000531There is a known average for human proportions. Going fdon there you can figure out if youre in the percentiles that qualify as leglet or trunklet (this is very unlikely).
After doing that you can determine how this 'skews' stack/reach of a bike for your proportions.
>picrelshows how a leglet requires more reach and less stack and vice versa. Putting a trunklet on a stretched out aero bike will make them stretched out like superman.
Now: Your final fit depends on seat tube angle and head tube angle and the amount of seatpost and spacers you will need to achieve a fit, the shallower the angle the more those will move the saddle or bars back.
>>2000436>if you want stronger legs ride your bike moreThis only holds true for very weak individuals. You will plateau within a week of riding anyways. On a bicycle your bodyweight puts a limit on how much force you can produce. Even when foing overgeared work and starting you wont exceed force equivalent to two times your bodyweight.
This is why every sprinter works up their single leg squat after the season ends and only during the leadup to the season gets on a bike to transform the acquired strength into power on the bike.
Hennemans size principle dictates you will not build strength or 'torque' on a bicycle, unless you weight what your maximum single leg squat is but no bicycle is rated for 250 kg riders. You're limited by bodyweight to remain in endurance territory. You will never reach the point of failure on a bicycle unless.you're severely detrained.