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Shimano Ultegra R8100 12 Spd Road Cassette ULTEGRA 8100: Join the Pursuit of Next Level Speed Shimano s new ULTEGRA line-up dives into what is ready behind the science of speed with real-world applications. Following in the footsteps of the DURA-ACE design philosophy and using many of the same product designs including the new addition of the 12-speed rear ULTEGRA is joining the pursuit of next level speed. DURA-ACE shared DNA The new R8100 series is designed for those seeking their next competitive advantage. Sharing the same DNA offering the same incredible performance of the R9200 series across all functions empowering the rider to take their ride to the next level. Shimano s Fastest Shifting Ever! Sharing the superior DNA the ULTEGRA Di2 platform also has the improved system design across its electronics. Increasing the processing efficiency between motor gears and the overall transmission performance enabled the system to reach its fastest speed ever! Better yet now also keeping your wireless systems even more secure the new high security fast-processing low power consumption proprietary chip sets the new standard. Smoother Drivetrain ULTEGRA now features two new 12-speed HYPERGLIDE+ cassettes 11-30 and 11-34 ratios with ramped profiles ensuring quick and shockless shifting and ultimately smoother changes whether changing up or down gears staying on the acceleration.
- Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation
- Faster smoother shifts under maximum pedaling force
- Compatible with new 12-speed and road 11-speed freehub body