It is required when installing or reinstalling a Campagnolo 12 speed chain. A key part of the Ultra-link fastening system. It works for Campagnolo chains only and the pins should only be installed with the Campagnolo chain tool.
Campagnolo 12 Speed Cassette Lockring - 11T (CS-511)
Campagnolo Chorus 12 speed Front Derailleur Braze-On 2 x 12 Speed
CAMPAGNOLO HIGH END HUB LIP SEAL (EACH) – HB-RE021 GENUINE CAMPAGNOLO SPARES
Shimano Chain XTR 12 Speed M9100 126L QuickLink Sil-Tec Genuine Replacement
SRAM GX Eagle 12-Speed rear derailleur Inner Cage 52 Teeth Genuine
Shimano Chain XT 12 Speed M8100 126L Includes QuickLink Genuine Replacement
