Shimano Ultegra CS-R8100 12 Speed Cassette mirror Instantly seals punctures up to

Instantly seals punctures up to 6mm and slices up to 19mm long

SO YOU CAN RIDE WITH MORE CONFIDENCE AND HAVE MORE FUN

This unique shape that provides a perfect profile for female cyclists and maintains structural stability over time

lightly treaded design with siping channels for traction and all-weather confidence

grab groceries and more

Shimano Ultegra CS-R8100 12 Speed Cassette mirror Instantly seals punctures up toDescription Shimano ULTEGRA CS R8100 12 speed Cassette The Shimano CS R8100 is the suitable cassette for new Ultegra R8100 12 speed group. The most advanced drivetrain is 100 % performance focused and truly revolutionary thanks to the HYPERGLIDE+ technology. THE SCIENCE OF SPEED: Shimano Ultegra 12 speed Cassette CS R8100 Great speed means great responsibility. That's why, faced with the task of making the new ULTEGRA groupset even faster, Shimano