Cycling Ceramic Shimano GRX-RX 11/12s Max 36t Gravel jockey wheel system

The CyclingCeramic Oversized Pulleys have been specially designed to offer an exceptional improvement in the performance and efficiency of your Shimano GRX810/815 + RX800/805 derailleur. Manufactured from high-quality materials and equipped with advanced technology, these pulleys are the perfect choice for demanding cyclists looking to unleash the full potential of their Shimano GRX810/815 + RX800/805 transmission.

Features:

- Aluminum Pulleys and Carbon Plates: CyclingCeramic Oversized Pulleys are equipped with precision-machined aluminum pulleys, combined with lightweight and durable carbon plates. This material combination ensures a significant weight reduction while providing superior strength, perfectly suited for road requirements. Their sleek and aerodynamic design enhances the overall aerodynamics of your transmission, helping you gain speed and efficiency.
- Ceramic Bearings Technology: The ceramic bearings in CyclingCeramic Oversized Pulleys are specifically tailored for Shimano GRX810/815 + RX800/805 derailleurs. With these high-quality bearings, you benefit from a notable reduction in friction during gear changes, resulting in smoother transmission and noticeable energy savings.
- Gravel advantage: Optimal adaptation to your transmission by allowing the addition of up to 2 extra teeth on a gravel cassette, maximizing performance on tough terrains.
- Tested by Frictions Facts: With a measured friction of only 0.033w, CyclingCeramic’s ceramic bearings are among the fastest in the market.

Specifications:

- Pulley Wheel Material: Aluminium
- Cage Material: Carbon UD
- Pulley Wheels: 14-tooth upper and 19-tooth lower
- Bearings: HandMade ceramic bearings
- Compatibility: Shimano GRX810/815 + RX800/805
- Cassette Compatibility: Fits 11-speed up to 42T (Mono) or 36T (Double)
- Spring Tension Settings: 3 spring
- Speed: 11 speed
- Weight: 67 grams

In the box:
- Complete OSPW System for Shimano GRX810/815 + RX800/805
- CyclingCeramic Oil for Pulley Wheel Bearings (15 ml dropper bottle)
- Mounting Instructions
- Sticker sheet