The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design.

• The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design.
• Features a 14-tooth upper pulley wheel and a 18-tooth lower pulley wheel to provide absolute optimization of the rear derailleur
• The narrow wide tooth profile ensures durable chain retention
• Robust cage is crafted from carbon reinforced polyamide for durability and light weight
• Three spring tension settings allow you to customize performance and reduce chain drag