HubBub Adaptors

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HubBub Other Shifter Parts HubBub Other Shifter Parts For using drop bars on bicycles equipped with internal gear hubs such as the Rohloff Speedhub, Shimano Nexus, NuVinci and SRAM /Spectro models that are available only with twist grip shifters Insert into the end of a drop bar to provide a 7/8" (22.2mm) diameter straight extension Show more