unior chiave smontaggio cassetta sram 12v 1670 2bi axs usSingle sided, compatible only with Sram X Range cassettes Modern alternative to the traditional chain whip The pins on the tool engage with the smallest 10T sprocket on the cassette and hold it in place, while the center opening allows easy access to the cassette lockring Material: premium carbon steel plus flex Surface finish: chrome plated ISO 1456: 2009 Sturdy ergonomic two component handle