Shimano Ultegra WH-6600, WH-R600, WH-R601 Wheel Ceramic Ball (22x3/16"+34x5/32")

Shimano Ultegra Wheelset Ceramic Ball (22x3/16"+34x5/32") - Ceramic balls only. Shimano Ultegra WH-6600. Shimano Ultegra WH-R600. Shimano Ultegra WH-R601. Grade 3 Si3N4 HSC ceramic balls - the highest grade in the market.

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