Entering operations in 1999, two complementing suspension components make the TF25 distinctive - a soft primary suspension comprising of hydraulically damped coil springs and a stiff secondary suspension using rubber bonded side-bearers.

The TF25 has the following advantages:

• Low track forces producing low bogie wear and reduced maintenance
  
• Track friendly - low track wear
  
• Freight friendly - low vertical acceleration
  
• Low noise
  
• High speed of 120 KPH
  
• Relatively light at 4.4 tonnes with an integrated brake
  
• High axle loads of up to 25.5 tonnes - anticipating future axle-loads allowances

The TF25 is especially suited for new wagon designs and enjoys unrestricted approval in the UK.