Original sentence: Production of the Velocette KTT ended in 1935 and the model was replaced after WW2 by the Velocette KTT Mk VIII
Edited sentence: Production of the Velocette KTT ended in 1935, and it was the last Velocette model to use an open cam box and fully pressurized oil system.The model was replaced after WW2 by the Velocette KTT Mk VIII