Our EVO-900TF is the drive for people that would like the strength and reliability of an outboard bearing support. This drive was designed with the same ideas of our Top Fuel Street drive the TF-2000. This drive has all the components of the EVO-9TF but with a strong billet outer bearing support to help minimize flex in the motor plate for high horsepower motors. This drive fits 1986-1989 Softail models.