This OSPW X system for GRX RX820 2x12-speed rear derailleurs is built for gravel and cross disciplines and meets the needs for durability, low friction and longevity. The four spring tension settings allow customised setup based on ride conditions, and the handbuilt OSPW System offers custom molded carbon fiber cage for lightweight and durability. CeramicSpeed OSPW Systems reduces friction 35-40% over stock pulley configuration.Robust cage crafted from polyamide and carbon fiber for durability and light weight. Anodized aluminum 5-spoke 13-tooth upper and 19-tooth lower pulley wheels are light weight and durable. This OSPW X System has handbuilt CeramicSpeed coated bearings installed in each pulley. Grade 3 Silicon Nitride ball bearings are 400% smoother, 128% harder and 58%.
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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, aluminum pulley wheels with Grade 3 Silicon Nitride balls. 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 GRX 810 & GRX 815, Ultegra RX 800 & Ultegra RX 805. Cassette compatibility up to 11-36. Four spring tension settings allow customized setup based on ride conditions. CeramicSpeed products with coated bearings include a lifetime warranty. Item Specifications: Defined Color, Black, Fits.
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Part Number: CSMX80. Manufacturer: SunRace. - High performance 11-speed cassette - 11-13-15-18-21-24-28-32-36-42-50T Cogs - 7075 Largest Sprocket (42T & 50T sprockets and spiders) - Alloy Lockring and Spacers - 6 Sprockets on 2 Alloy Spider Carriers - Standard 10 11 speed freehub - Hi-Ten.
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2 Pcs 11T Aluminum Sealed Bearing Jockey Wheel Rear Derailleur Pulley for Shimano Sram Rear Derailleur Etc. Type : 11T. Anodised CNC machined bicycle jockey wheel with fully sealed bearing for rear bike derailleurs.
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Fovno Rear Derailleur Pulley Set. Support speed: 7-12 Speed.
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Excellent condition, off a demo bike
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Shimano Rear Derailleur Pulley Assemblies OEM pulley set for Dura-Ace RD-9070. Sealed bearing guide & tension pulley. Item Specifications: Chain Compatibility, Shimano 11,.
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SwishTi Wheel Bearings reduce friction, which gives you a lower rolling resistance. The system consists of Top 14t or 16t & Bottom 16t alloy pulley wheels fitted with low friction bearings and a lightweight strong cage made from Titanium material.
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