Campagnolo Cassette Lockring 11 Speed for 11 Tooth First Position Sprocket CS-111Variant sold out or unavailable Campagnolo Cassette Lockring 11 Speed for 12 Tooth First Position Sprocket CS-112Variant sold out or unavailable Campagnolo 13 Speed Lockring for N3W Freehub - Z10 Only CS-700Variant sold out or unavailable Campagnolo 12 Speed Lockring for 11 Tooth Cassette CS-702Variant sold out or unavailable Campagnolo 11 Speed Lockring for N3W Freehub - Z12 Only CS-703Variant sold out or unavailable Campagnolo N3W Adapter and Lockring for 11 Tooth First Cassette AC21-N3WVariant sold out or unavailable