Wolf Tooth Single Speed Aluminum Cog - 20t Compatible 3/32" Chains BLK MFPN=SCH020290N0100 }Surly Big Dummy Bag BrakeCaliper

}Surly Big Dummy Bag BrakeCaliper Wear Patch

Color Black Pad Attachment Style Threaded Post Rim Compatibility Standard Intended Brake Type Cantilever Pad Type Cartridge

highly individual fit that makes the shift-brake controls feel like a natural extension of the rider

}Zipp Freehub Kit - 10 to 11-speed 188 SRAM

Hose fittings and line are sold separately

Wolf Tooth Single Speed Aluminum Cog - 20t Compatible 3/32" Chains BLK MFPN=SCH020290N0100 }Surly Big Dummy Bag BrakeCaliperWolf Tooth Single Speed Aluminum Cog: 20T Compatible with3 32" chains. Light strong with extra tall teeth the Wolf Tooth Aluminum Single Speed Cog is a lightweight option for single speed cogs that's offered in a variety of sizes. Wide 4. 5mm base won't dig into your freehub Made of 7075 Aluminum Alloy for durability and lightness Made in the USA TECH SPECS Tooth Count 20 Cassette Body Type Shimano SRAM 8 9 10 Speed Defined Color Black Material