The D-Shape Seatpost Adapter is a compact and lightweight solution designed specifically for mounting Lezyne KTV and Strip Drive Rear lights onto D-shaped seatposts. With more bikes adopting aerodynamic seatpost designs, this adapter ensures a secure and stable fit for your rear light, maintaining optimal alignment and visibility. Crafted to work seamlessly with Lezyne’s rubber strap mounting system, it provides a reliable interface between your light and the uniquely shaped seatpost surface.

Weighing just 4 grams and measuring 40mm by 17mm by 8.9mm, the adapter adds minimal bulk while delivering maximum utility. Its precision-molded shape hugs the contours of D-shaped posts, preventing slipping or shifting during rides over rough terrain. Whether you're commuting, training, or racing, this small but essential accessory helps ensure your rear light stays firmly in place, enhancing your visibility and safety on the road. If you use a KTV or Strip Drive Rear light and ride with a modern aero seatpost, the D-Shape Seatpost Adapter is a must-have addition to your setup.