No, not an Enfield as I think it dates from around 1908 when they were having a rest from motorcycles. The frame is again a Chater Lea kit. The gusetted steering head and low top tube was called "new" in the 1907 catalogue. The CL forks look rigid, but the little CL sprung links might be hiding under the mud guard skirt. Not sure about the motor - V twin with atmospheric inlets and magneto low at the front. JAP? Peugeot?... Ditto for the make of machine - probably from one of the smaller manufactuers?
Love the cat on the front number plate!
Leon