Shimano Dura-Ace CS-R9200 Cassette Lock Ring & Washer Description: This Shimano Dura-Ace CS-R9200 Cassette Lock Ring & Washer works to replace or repair the cassette lock ring and spacer found onboard Shimano Dura-Ace CS-R9200 Cassettes, along with select other cassettes. Features: Replacement Cassette Lock Ring and Spacer for Shimano Dura-Ace CS-R9200 Cassettes See compatibility tab for full list of compatible cassettes Specifications: Material: Alloy Color: Black