Shimano CN-HG40 6/7/8-Speed Chain with SM-UG51 Quick Link - REV Endurance Sports
Amazon.com : 6/7/8 Speed Bike Chain Kit - Complete Bike Kit with 2 Bike Chains (1/2" x 3/32", 116 Links), 3 Extra Pairs of Master Links, and 1 Chain Rivet Extractor Compatible
Shimano Chain SHI CN-HG40 6/7/8-Speed 116L Chain - Granada Cyclery