1.8 Speed: Bicycle chain is applicable to all types of 8 speed, 2x8 speed and 3x8 speed transmission system. Suitable for most bicycles, mountain bikes, road bikes, etc. 2.External Chamfer Design: Half hollow 8 speed bike chain adopts outer chamfer design to prevent the teeth from interfering with the chain, and the shifting operation is smoother. 3.Strong Treading Force Bearing: Built in high strength shaft center, high rigidity reinforced structure, this bike speed chain is tight, flexible and not stuck, can withstand high treading force. 4.Half Hollow: Precisely designed half hollow structure make the bike chain more lightweight, help to reduce overall weight of bicycle while riding and cycling. 5.Alloy Steel: Made of premium alloy steel, bicycle replacement chain has high hardness and high strength, rustproof, durable, suitable for a long term use. Item Type: 8 Speed Bike Chain Material: Alloy Steel Gross Weight: 342g / 12.1oz 1 x 8 Speed Bike Chain 2 x Chain Link Connector 1 x Storage Box