I'm A Second-class Yesha Resident

Here's the bus ticket from the junction of Psagot-Highway 60 to Jerusalem on the 143 from Tel Tziyon:

The price - 4.30 NIS, which takes into account, to be fair, the across-the-board 50% reduction we Yesha residents have for all our bus lines.  You'll note the ותיק classification above.

That location is outside of Jerusalem.

A bus ticket in Jerusalem for the municipal routes cost 6.90 NIS.

A difference in fare of 2.60 NIS.

The fare for a bus trip from Shiloh to Jerusalem, about double the distance than the length of that 143 line is 12 NIS.

How to explain?

Simple.

Tel Tziyon is a major Hareidi town.  They have the political clout - and use it.

^