12 Speed Rollerless Galaxy Chain / Bicycle Chain

This is the bike chain made for the road bike cyclist who always pursuing excellent shifting and a long-lasting product life span.
1.The rollerless structure saves 5-8% energy in comparison to a chain with a roller. Engineering the roller as part of the plate makes it stiffer and able to transfer energy more efficiently.
2. A mirrored, colorful galaxy surface easy to rinse and clean.
3.The U-shape in the outer plate stores 133% more lubrication than a chain with a roller.
4. Use of materials is minimized and weight is saved with only three components in the structure.