Shimano Dura-Ace R9100 11 Speed Cassette Size:11-30t Chain Cleaner is an active

Chain Cleaner is an active cleaner/degreaser suitable for the chain and drivetrain components

It features a removable visor with hidden anchors for easy transition between environments

With a 40-lumen output and up to 20 hours of run time in eco flash mode

while Tektro Slate EVO 4-piston brakes provide reliable stopping power

Shimano Dura-Ace R9100 11 Speed Cassette Size:11-30t Chain Cleaner is an activeThe Shimano Dura Ace R9100 11 Speed Cassette is crafted for top tier cyclists, featuring carbon fiber and aluminum spiders with five titanium sprockets. This design ensures a lightweight yet high performance experience. The mid range is optimized for efficient riding, making it ideal for both racing and training. Choose the R9100 for speed, efficiency, and smooth shifting.