Tripeak Asymmetrical Oversized Pulley Wheel Kit AOPW - Dura Ace - 12s PURPLE

◆ Patented Asymmetric Frame Design ◆ 12/18T Oversize Pulley ◆ 4 Years Warranty Before AOPW, the intricate process of upgrading to oversized pulley wheels made it challenging for enthusiasts to dive in. AOPW simplifies it all. With just a common hex wrench, you can effortlessly swap to the larger 18T AOPW. No need to fuss with adjusting chain length＊ Install AOPW hit the road for an immediate experience smooth & high speed! ＊ After installation, it is still necessary to check the chain length and B-tension spacing.