The Super B TB-FW41 Adjustable Cassette Wrench is a Super B exclusive, patented bike tool with a removable pin that holds 10T, 11T or 12T sprockets securely in place while you work. Its centre opening fits cassette lockrings securely, making it easy to hold the cassette steady during removal or installation. Note that this tool is designed to hold the cassette only — primary torque should be applied using a compatible cassette remover tool.
- Super B exclusive patented design with a removable pin
- Holds 10T, 11T or 12T sprockets in place
- Centre opening fits cassette lockrings securely
- Note: designed to hold the cassette only; use with a compatible cassette remover tool for torque



