Complete replacement 5 speed gearbox assembly T140 T150 T160. Please state model when ordering as the mainshafts are different on twins to triple.

To convert from a 4 speed to a five speed on a unit T120 T150 or an A75 please add the appropriate conversion part numbers : FIVESPEEDA Conversion from 4 to a 5 speed T150 only or   FIVESPEEDB Conversion from 4 to a 5 speed A75 X75 only  or  FIVESPEEDC Conversion from 4 to a 5 speed T120 only

Also dont forget that you will also require a new gearbox sprocket for a 5 speed as they are different to the old 4 speed, please state the number of teeth required