The SRAM PC-1031 Chain is a revamped version of the PC-1030. The only difference is a subtle reshaping of the outer plates to make it run quieter. It’s made specifically for 10-speed drivetrains, and like its pricier relatives, it mates perfectly with the tooth shaping and pickup/release points on SRAM’s cassettes and chainrings for flawless shifting performance.Two main details differentiate it from their top of the line PC-1091 — it lacks the hollow pins and nickel plating on both the inner and outer link plates. So the solid pins add some twenty grams or so over a hollow-pinned chain and you’ll just need to make sure that you keep your PC-1031 chain well-lubricated and it will serve you well. The chrome-hardened link pins provide all the strength you’ll ever need for massive efforts against the pedals. You can install a PC-1031 chain without special tools thanks to SRAM’s PowerLock connecting link. No other sub-6mm chain in the marketplace shares this feature. And unlike the occasional headaches we’re all familiar with when it comes to Shimano HG pins and Wippermann connecting links, the PowerLock link is as strong or stronger than any other link on the chain, and it won’t hinder shift quality in the least.The SRAM PC-1031 Chain is compatible with both SRAM and Shimano 10-speed drivetrains. Please note that while the PowerLock installation can be done tool-free, it’s recommended to be used only once due to the extremely close tolerances required by the narrow 10-speed design. So if you must break your chain for maintenance reasons, a new 10-speed PowerLock link will be required to reassemble it.