I notice this commercial game only has a DSK image on CPC-Power and is not in the huge CDT archive either.
Was it not released on tape for the Amstrad, it's a tape based game on the C64.
Yes, it was also released on tape for the CPC:
(https://live.staticflickr.com/65535/52725090139_13953cb064_c.jpg)Mountie Mick's Deathride for Amstrad CPC (https://flic.kr/p/2ok8Sog) by Deep Fried Brains (https://www.flickr.com/photos/grupousuariosamstrad/), on Flickr