X10p
X10p is a series of three-car electric multiple units operated by Greater Stockholm Transport (SL) on the Stockholm urban rail network called Roslagsbanan.
The 891 mm (2 ft 11 1⁄10 in) gauged line cannot use the standard gauge rolling stock used in the rest of Stockholm, so SL ordered 35 new units to replace a multitude of older stock. Since 1995 X10p has been the sole stock used on Roslagsbanan.