Rockbros 41210091001 Seat Clamp - Black The Rockbros 41210091001 bicycle clamp is comfort and safety without compromise. The openwork protection made of 6061 aluminum alloy is lightweight and durable. The anodized surface guarantees a beautiful and elegant look for years. Easy adjustment to the diameter of the seat tube and seatpost guarantee durable protection against movement of components. This modern and versatile product fits both road and mountain bikes. Simple and secure seatpost mounting without the need for additional tools makes it easy to get your bike ready for the next miles. Specification: Manufacturer: Rockbros Model: Rockbros 41210091001 Material: Anodized 6061 Aluminum Clamp Diameter: 31.8mm Fits Seatposts: 27.2 and 28.6mm Color: Black Key Benefits of the Rockbros 41210091001 Bicycle Clamp: Provides durability for years. The strong 6061 aluminum alloy and anodized surface guarantee increased strength. It does not increase the weight of the bikes. The fashionable openwork design and the clamp material used do not increase the weight of the bike. Permanently secures the seatpost. Easy adjustment to seat tube diameter and seatpost size allow the clamp to clamp tightly. It is universally applicable. Fits many models of road, mountain, city and children's bikes - the diameter of the clamp is 31.8 mm. It ensures simple installation. All you have to do is loosen the included screw, adjust the height of the saddle, and then screw the whole thing with an Allen key. Made of 6061 Aluminum The 6061 aluminum alloy from which the Rockbros 41210091001 clamp is made has a high resistance to deformation. The anodized surface protects the product from oxidation and corrosion while adding an elegant appearance. Openwork construction The openwork construction of the clamp adds lightness and style without adding weight - it is only 18 g. The material used has a low dead weight, additionally slimming down the entire clamp structure. Easy and secure fit The product is compatible with bicycle seatposts in sizes 27.2 and 28.6 mm. The clamp can be easily attached to the seat tube. The clamping clamp is simple and guarantees a firm grip - the seatpost does not move in the seat tube. The diameter of the Rockbros 41210091001 clamp is 31.8 mm, which makes it perfect for road, MTB, city or children's bikes. Its minimalist and elegant design matches both a carbon racer designed for breaking records and a colorful bike for the little ones. Simple installation Simply loosen the screw and slide the clamp onto the seat tube. You can then slide the seatpost in and set it to the desired height. The last step is to tighten the screw firmly with an Allen key (not included). The process is quick and requires only one tool.