![Y1Z807000 Shimano 10-Speed Road Cassette Spacer - 1mm (for Dura-Ace Ultegra 105) 4524667230724 | eBay Y1Z807000 Shimano 10-Speed Road Cassette Spacer - 1mm (for Dura-Ace Ultegra 105) 4524667230724 | eBay](https://i.ebayimg.com/images/g/R-4AAOSw9lZfcfBk/s-l500.png)
Y1Z807000 Shimano 10-Speed Road Cassette Spacer - 1mm (for Dura-Ace Ultegra 105) 4524667230724 | eBay
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Amazon.com : SHIMANO Dura-Ace 7800, Ultegra CS-6600, 10-Speed Cog Spacer (2.35mm) : Bike Cassettes And Freewheels : Sports & Outdoors
![Replacing friend's cassette. Found spacer. Is a 10 speed cassette. Don't know if it is 11 speed hub. Do I keep or throw? : r/bikewrench Replacing friend's cassette. Found spacer. Is a 10 speed cassette. Don't know if it is 11 speed hub. Do I keep or throw? : r/bikewrench](https://i.redd.it/9sj3p1q1iex71.jpg)
Replacing friend's cassette. Found spacer. Is a 10 speed cassette. Don't know if it is 11 speed hub. Do I keep or throw? : r/bikewrench
![Shimano Y4T724000 FH-9000 Low Spacer :: £4.40 :: Components. :: Cassettes - Shimano Spacers. :: For Hand built bike wheels & all your cycling needs! Shimano Y4T724000 FH-9000 Low Spacer :: £4.40 :: Components. :: Cassettes - Shimano Spacers. :: For Hand built bike wheels & all your cycling needs!](https://www.cyclebasket.com/smsimg/14/2992-0-full-cassette-14.jpg)