CeramicSpeed OSPW X Pulley Wheel System Shimano GRX RX820 2x12 - Aluminum Pulley Carbon Cage BLK MFPN=1-BL-CLBRS-BOX-04S PB 28 LED power array

PB 28 LED power array and reflector provides steady courtesy & superflash modes

Its combination of recycled 2L wind- and water-proof polyester fabric and quilted polyester lining make it perfect for winter layering

Carbon lever blade and composite lever body provide strength with the benefit of weight savings

25 Advertised Weight 2

Keeping Super Secret under 41 F can result in the product freezing and being damaged

CeramicSpeed OSPW X Pulley Wheel System Shimano GRX RX820 2x12 - Aluminum Pulley Carbon Cage BLK MFPN=1-BL-CLBRS-BOX-04S PB 28 LED power arrayThis OSPW X system for Shimano 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. Largest Cog 36