Surly Big Dummy Rail Collars S3-Cat-Components&Parts-Chainrings-MountainChainrings-DirectMountChainrings Freewheels for Campagnolo & Fulcrum

Freewheels for Campagnolo & Fulcrum sealed bearing hubs with steel axle

ergo costs less for you to purchase

No damage to bike parts

(34mm kit includes one extender tool)   FEATURES

Surly Big Dummy Rail Collars S3-Cat-Components&Parts-Chainrings-MountainChainrings-DirectMountChainrings Freewheels for Campagnolo & FulcrumSURLY BIG DUMMY RAIL COLLARS These tiny little pieces of hardware are designed to vastly improve the overall performance of your Surly Big Dummy. These simple clamps are designed to strengthen the interface between Surly Dummy Rails and the lower longtail frame. Cool huh? Please see the attached resource below for more info instructions.