Advantages of bolt group
Shimano Ultra FC-R8000 Archival Swivel Chain Bolt Kit
4x screws.
4x lids.
BCD: 110 x 4.
Features of My Rotor Schnwell Matching Bolt Set
Technical Specifications:
Material: union
Compatibility: Shimano Ultegra FC-R8000 . crank
Color: anthracite, black
Weight: 21 grams
Scope of delivery: 4x cap covers, 4x chain screws