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parts - How are these plastic rings used on my Shimano disk brake mount adapter? - Bicycles Stack Exchange
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Shimano 8B2 1200 BR-M755 Disc Pad Snap Ring :: £1.80 :: Components. :: Brakes - Spares Assorted :: For Hand built bike wheels & all your cycling needs!
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Universal Cycles -- Shimano Disc Brake Centerlock Rotor Lockrings [Y2A598030, Y8PV98010, Y8K198010, Y8PW98020]
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