KATO 20-420 124mm 4 7/8" Single Track Straight Viaduct Track N Scale

The Single-Track Elevated Straight Track 124mm <S124V> is an elevated track section that is half the length of the Single-Track Elevated Straight Track 248mm <S248V>.
By swapping this track with the Crossing Track 124mm <S124C> (without using the ramp section), you can also install a derailment recovery track on the elevated line.