Specs

• Pulley Wheels: CyclingCeramic 14-tooth upper and 19-tooth lower

• Pulley Wheel Material: Aluminium machined in France

• Cage Material: Carbon UD and Aluminium

• Bearings: HandMade ceramic bearings

• Compatibility: Compatible with Shimano Ultegra (8100/50) & Dura-Ace (9200/50) – 12s & Shimano Ultegra (8000-50) & Dura-Ace (9100-50) – SS & GS – Oversized Derailleur Cage – 14-19T

• Cassette Compatibility: Fits 11-12 speed 11 to 34-tooth cassettes.

• Spring Tension Settings: 2 spring

• Speed: 11 & 12 speed

• Weight :  110 grams

In the box:

• Complete OSPW System for: Shimano Ultegra (8100/50) & Dura-Ace (9200/50) – 12s & Shimano Ultegra (8000-50) & Dura-Ace (9100-50) – SS & GS – Oversized Derailleur Cage – 14-19T

• CyclingCeramic Oil for Pulley Wheel Bearings, 15 ml. dropper bottle

• Mounting Instruction

• Stickers sheet