there was an export bike primarily for use as a desert racer, sold up until 1969 as the norton p11, ajs model 33, matchless g15 and norton n15 which used the norton atlas engine in a modified matchless g85cs scrambler frame with norton wheels and front forks. this bike was reputed to vibrate less than the featherbed frame model. amc singles were also sold with norton badging in this era.