Description
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 13-tooth upper and 19-tooth lower, titanium pulley wheels with Grade 3 Silicon Nitride balls
- Titanium pulley wheels are 3D-printed and hollow for additional weight savings and durability
- Robust cage crafted from polyamide and carbon fiber for durability and light weight
- Coated bearing races increase bearing service life by increasing hardness of race and reducing corrosion
- Compatible with Dura Ace 9200 and Ultegra 8100 series (Fits 11-30 and 11-34 Shimano 12spd Cassette options)
- Four spring tension settings allow customized setup based on ride conditions
- integrated stop tower for simple installation and durability
- CeramicSpeed coated bearings include a lifetime warranty
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