>>1746120Sprocket Maximum tooth count is affected by the length of the RD hanger above the B pivot, and the Pre-load of the B pivot spring
Capacity is to do with chain tension, this is affected by the distance between the Guide and tension pulley, and also the sweep of the P pivot spring
the Chain rings and sprockets the bike in
>>1745352 comes with are
Front difference
50-36=14
Rear difference
28-14=14
Total Capacity
28T (the RD can handle 9 more teeth of capacity than this so is slightly under utilised)
Front Derailleur also have limitations, mostly to do with chain skew, and a little bit to do with chain tension.
the cage has to be long enough, and wide enough so the chain will not hit it.
but also not so long that it collides with the chain-stay, or so wide that it collides with the rear tire.
there are some other things but that would need more detail
anyway parts will work slightly outside of the maximums stated by the part maker
but its harder on the springs and pivots, and the shifting quality may not be so good
