Discover Precision and Speed with the Shimano Ultegra Di2 RD-R8150 12-Speed Rear Derailleur – Your Gateway to Ultimate Cycling Performance at AU$649.95. Elevate your road cycling journey with this cutting-edge component from the ULTEGRA 8100 series, designed to deliver unmatched performance by harnessing the power of DURA-ACE technology.
**Key Features:**
– **Advanced Wireless Technology:** Experience seamless and reliable shifting with the fully wireless Di2 platform, ensuring a hassle-free ride. The system’s innovative design includes a primary battery charging from the rear derailleur, making post-ride maintenance a breeze.
– **Ultra-Fast Shifting:** Achieve Shimano’s fastest-ever shifting speeds thanks to an advanced system design and a proprietary chip that offers high security, rapid processing, and low power consumption. Stay ahead of the competition with every gear change 
