Pembree DBN Seatpost Clamp Reinvented support for your dropper post The DBN seat post clamp has been reinvented with a deeper clamp and a wider nut, providing unmatched support for your mountain bike. Concentric clamping prevents crushing the internals of dropper posts, while the clamp is manufactured from high strength, easily recyclable 6000 series aluminium, deep enough for a carbon frame bike. Stepped barrel nuts prevent the nuts from falling out during installation, and an extended range of motion accommodates differences in bike frame sizes. Available in 6 vibrant colors and 3 sizes, it combines style and performance, and is a must-have accessory for enthusiasts. Features Concentric clamping prevents crushing the internals of dropper posts Recyclable 6000 series aluminium high strength and eco-friendly, deep enough for carbon frames Stepped barrel nuts prevents nuts from falling out during installation Extended range of motion accommodates differences in bike frame sizes Stainless steel screws with washers won't rust and protect the aluminium Specifications Material Aluminium Sizes34. 9mm, 38. 5mm, 39. 7mm Bolts M6 Stainless steel bolt with washer Barrel Nuts Custom made 7075 T6 aluminium Made in UK, assembled in France | Pembree | Dbn Seatpost Clamp | Black | 34. 9Mm