A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it. Most bicycle chains are made from plain carbon or alloy steel, but some are nickel-plated to prevent rust, or simply for aesthetics.A bicycle chain can be very energy efficient: one study reported efficiencies as high as 98.6%.The study, performed in a clean laboratory environment, found that efficiency was not greatly affected by the state of lubrication.A larger sprocket will give a more efficient drive because it moves the point of pressure farther away from the axle, placing less stress on the bearings, thus reducing friction in the inner wheel. Higher chain tension was found to be more efficient: “this is actually not in the direction you’d expect, based simply on friction”. There are 2 features of the bike chain:

High strength and smooth lubrication

Compact, portable and easy to use


High strength and smooth lubrication introduce.

The bike chain is made of special forged steel, with a tensile strength exceeding 820 kgf, ensuring high strength.The surface of the bike chain is polished, and the inside is oiled to provide corrosion and rust protection; the double x bridge design makes the shifting speed fast and stable.

Compact, portable and easy to use introduce.

This bike chain is in compact design and box package is portable for carrying to anywhere anytime. Chain joints for the magic buckle, easy to remove or install the bike link.Just line everything up properly and push the pin out and remove link, then put the chain back together, line it all up and turn the sprocket to confirm the chain is firmly attached.