An original design to meet network constraints
The vehicles were built in Bagnères-de-Bigorre, except for the bogies which were made by CFD Industrie in Montmirail.
These articulated railcars with 3 bogies were built by CFD in Bagnères for the Blanc-Argent network. This particular architecture made it possible to meet the need to increase passenger capacity while respecting the network's low axle load.
Specifications railcar X 74500
| Features | Values |
| Autorail articulated from two boxes on three bogies | |
| Loaded weight in tons | 45 |
| Number of seats | 75 |
| Length between buffers | |
| Overall width | 2583 |
| Hauteur | 3500 |
| Empattement bogie | 2100 |
| Drive Pivot Spacing | 7280 |
| Wheel diameters in metres | |
| Maximum speed in km/h | 85 |
| Diesel engine MAN 300 KW at 2100 rpm | 6 cylinders in line |
| Gearboxes Voith | T211 R |
