A transmission system for a work vehicle , comprising a transmission comprising: a first shaft ; a second shaft ; an input shaft an output shaft ; an input gear pair (Z1) comprising a first input gear and a second input gear ; a first input clutch (B) configured to selectively couple the input shaft to the first shaft ; a second input clutch (A) configured to selectively couple the input shaft to the second shaft via the input gear pair (Z1); an output gear pair (Z3) comprising a first output gear and a second output gear , wherein the first output gear is coupled to the first shaft , or the second output gear is coupled to the output shaft ; a first output clutch (L) configured to selectively couple the second output gear to the output shaft if the first output gear is coupled to the first shaft , or to selectively couple the first output gear to the first shaft if the second output gear is coupled to the output shaft ; a second output clutch (H) configured to selectively couple the second shaft to the output shaft ; a first module , wherein the first module comprises: a first module gear pair (Z2) comprising a first module gear and a second module gear , wherein the first module gear is coupled to the first shaft , or the second module gear is coupled to the second shaft ; characterised by further comprising a first module clutch (E) configured to selectively couple the second module gear to the second shaft if the first module gear is coupled to the first shaft , or to selectively couple the first module gear to the first shaft if the second module gear is coupled to the second shaft . a first shaft ; a second shaft ; an input shaft an output shaft ; an input gear pair (Z1) comprising a first input gear and a second input gear ; a first input clutch (B) configured to selectively couple the input shaft to the first shaft ; a second input clutch (A) configured to selectively couple the input shaft to the second shaft via the input gear pair (Z1); an output gear pair (Z3) comprising a first output gear and a second output gear , wherein the first output gear is coupled to the first shaft , or the second output gear is coupled to the output shaft ; a first output clutch (L) configured to selectively couple the second output gear to the output shaft if the first output gear is coupled to the first shaft , or to selectively couple the first output gear to the first shaft if the second output gear is coupled to the output shaft ; a second output clutch (H) configured to selectively couple the second shaft to the output shaft ; a first module , wherein the first module comprises: a first module gear pair (Z2) comprising a first module gear and a second module gear , wherein the first module gear is coupled to the first shaft , or the second module gear is coupled to the second shaft ; characterised by further comprising a first module clutch (E) configured to selectively couple the second module gear to the second shaft if the first module gear is coupled to the first shaft , or to selectively couple the first module gear to the first shaft if the second module gear is coupled to the second shaft . a first module gear pair (Z2) comprising a first module gear and a second module gear , wherein the first module gear is coupled to the first shaft , or the second module gear is coupled to the second shaft ; characterised by further comprising a first module clutch (E) configured to selectively couple the second module gear to the second shaft if the first module gear is coupled to the first shaft , or to selectively couple the first module gear to the first shaft if the second module gear is coupled to the second shaft . <EOS>