FSC Variable Speed Bicycle Chain, 6 Speed, 7 Speed, 8

• Applicable to many types of shifting systems such as Shimano and SRAM. • Manganese steel is used and produced by quenching, making it durable, resistant to polishing, and has high tensile strength. • The surface is chrome-plated to prevent rust, and has passed salt spray test level 9 or above. • Double-X bridge design allows for quick shift changes. • The warranty period is 1 year, so please check whether this chain is applicable to your bicycle before purchasing.If you have any questions, please contact us.

Product specifications: ☛ Model number: F80 ☛ Size: 1/2"x3/32" thin ☛ Pin length: 7.2mm ☛ Pin length connection point strength: 110kg (minimum standard) ☛ Tensile strength: 860kg (minimum standard) ☛ Color (outer/inner): Silver/Silver ☛ Applicable gears: 6-speed, 7-speed, 8-speed, ☛ Weight: 0.32kg ☛ Number of links: 116 ☛ Packaging: Box packaging. technical support ☛Q: How long will it take to replace worn chains? ☛ A: Normally, if the elongation rate exceeds 1%, we will replace it." ☛ "Q: Under what circumstances will wear and tear on the chain increase? ☛ A: When I stepped on my bicycle, I put too much force on it, so the chain became slanted.If too much oil and dirt get on the chain, it will increase wear on the missing link, enlarge the hole in the missing link, increase the elongation rate, and reduce the life of the chain." ☛ "Q: What should I pay attention to when installing the chain? ☛ A: The current new generation chain is connected with rivets, and both sides of the missing link are enlarged to increase the rotational force when the chain is diagonal.These types of chains cannot be assembled directly, and when installed, special connecting pins or missing links are used.Old chains are flat on both sides, so when installing using a specialized chain cutter, you can aim at the hole and drive it in smoothly.Then, apply some diagonal force to check whether the chain is rotating smoothly." ☛ "Q: Can chains with different speeds be used? ☛ A: Theoretically, the chain can be used for lower gears, but the widths of the 8, 9, and 10 speed chains are different, and the gaps between the gears are different, so a 9-speed chain can be used with the 8-speed gear, but due to meshing, a gap may appear, making it impossible to shift smoothly or making noise.Therefore, it is recommended not to use it (with current technology, 6th, 7th, and 8th speeds are designed with the same speed level, and the same size chain can be used for these 3 speeds.) ☛ "Q: When will you check the chain? ☛ A: When the chain cannot rotate smoothly and the speed of shifting decreases, please check the chain." ☛"Q: How do you inspect the chain? ☛ A:1, chain gauge ☛ 2. Adjust the chain to the outer ring of the front ring and pull the chain.If the pulled chain is loose or the front ring is worn, the chain or front ring must be replaced." ☛ "Q: How often do you check the chain? ☛ A: 1. I drove 500km on a flat road. ☛ 　 2. I drove 150km on a bumpy road." ☛ Note: The service life of the chain depends on the driving intensity and maintenance method, so please avoid extreme gear changes while driving.