fund cotton blade saddle rail bracket marathon Rewarding Clean the bedroom
Cateye's RM-1 bracket designed to fit on the rails of a saddle.Rail diameter 6 - 8mm. Rail spacing 56 - 78mm Fits Rapid 5 TL-LD650, Rapid 3, TL-LD630-R, Raid 1 TL-LD611-R TL-LD610,
Varia Seatpost Mount Rear Light Bracket Bicycle Saddle Rail Led Lamp Stand | eBay