CeramicSpeed OSPW X Pulley Wheel System Shimano GRX RX820 2x12 - Aluminum Pulley Carbon Cage BLK CheckoutSpec= Reb29/comp25 This is a pack of

This is a pack of 2 Sport/Asthma filters

1" Casing Performance TPI 67 Compound Addix Bead Non-folding Type Non-tubeless Color Black Weight 645g E-bike E25

Zippered side pockets do not impede leg movement and are ideal for phone keys CO2 or snacks

) making it a great choice for nightime on the bike path

9-44t  •  Improved by 26%

CeramicSpeed OSPW X Pulley Wheel System Shimano GRX RX820 2x12 - Aluminum Pulley Carbon Cage BLK CheckoutSpec= Reb29/comp25 This is a pack ofThis 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