Purple Extreme Synthetic Lubricant 120ml/4oz.

Bike Medicine Purple Extreme Synthetic Lubricant is a drivetrain lubricant formulated to keep chains, derailleurs, and pivot points moving smoothly. Its synthetic base penetrates chain links to displace moisture and reduce friction between metal surfaces, helping components shift and roll with less resistance. The distinctive purple tint makes it easy to see where the lubricant has been applied.

Supplied in a 120 mL bottle, this lubricant suits regular home workshop maintenance for road, mountain, and commuter bikes alike. A light coating on a clean chain helps guard against the buildup of grime and road grit; wiping away excess after application keeps the drivetrain cleaner and reduces the chance of attracting dust. Regular use supports consistent shifting performance over time.

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