Feature: *12 dB noise reduction over Dura Ace *Precise gear shifting *Aerodynamic *Wattage saving *Lightweight design *Single-guide plate construction Suitable for: Shimano Dura Ace 9100 / 9150 / 9170, Ultegra 8000/8050, support up to 32T flywheel/Cassette. Shimano Dura Ace 9200 12spd / Ultegra 8100 12spd, Support up to 34T flywheel/Cassette. Name: The Oversized Pulley Wheel Model : Carbon Hollowcage Colors: Multicolor, Black, Red, Gold, Titanium Ceramic bearings 12/18t wheels Weight: 71g fit Road Bike.
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