Buy from Amazon.co.uk : http://www.amazon.co.uk/gp/product/B005YVTJS4?tag=jardineriap05-21
K-Edge GoPro Saddle Rail Mount -
Made in the USA CNC Machined 6061 T6 Aluminium
Weight - 45 grams super light super strong
Compatibility - clamp design fits all standard 2-rail saddles including oversized carbon rails all mounting hardware included