SHIMANOUltegra Unisex's FCR8100E26 Bike Part, One, Size

Shimano Ultegra FC-R8100 Ultegra 12-Speed Double chainset, 52 / 36T 175 mm

SHIMANO Ultegra CS-R8100 Cassette - 12-Speed, 11-30t, Silver

Shimano Xt/Ultegra 12-Speed Chain Silver, 138 Links