The Cateye RM1 Rear Saddle Mount Bracket. The Cateye Rear Saddle Mount Bracket is a genuine Cateye spares. Compatable with Rapid rear lights. Cateye RM1 Rear Saddle Mount Bracket Features The Cateye Rear Saddle Mount Bracket is a genuine Cateye spares. Compatable with Rapid rear lights. More info