The BPW Rear Carrier/Seatpost Clamp 34.9mm offers a practical way to attach a rear rack directly to your seatpost clamp, perfect for bikes lacking frame mounts. This dual-purpose product integrates a seatpost clamp with rack mounts, providing a secure fit with its robust black finish. Suitable for 34.9mm seatpost sizes, it features 5mm nodes for straightforward and dependable installation, boosting your bike’s utility while maintaining its aesthetic appeal.