Pricing £49.99 SHIMANOCN-HG901 Dura-Ace 9000/XTR M9000 chain with quick link, 11-speed, 116L, SIL-TEC
Pricing £58.99 SHIMANOCN-E8000-11 chain, 11-speed rear / front single, with quick link, 138L, SIL-TEC