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
Brand: AbsoluteBLACK
Model : Carbon Hollowcage 
Colors: Multicolor, Black, Red, Gold, Titanium
Ceramic bearings
12/18t wheels
Weight: 71g
fit Road Bike