Even if you don't feel the need to write a chart-topping rap song about your chain, you should still keep it shiny and new. And don't let all the grit and grime from the streets grind down your gears, when all it takes to make them gleam is a quick wash with Park Tools Chainbrite CB-4. Your links will last longer than ever before, and you won't risk harming any other alloy, rubber, or plastic parts on your bike in the case of a spill.

Bio ChainBrite Bicycle Chain and Component Cleaning Fluid is a 100% biodegradable, natural, plant-based degreaser formulated for use in the CM-5.2 Cyclone Chain Scrubber or as a general purpose degreaser. Won't harm alloy, plastic, or rubber parts.

• Use CB-4 full strength, do not dilute with water. Cover parts in solvent and scrub using a brush.
• 16 oz. bottle
• Use with Park Chain Cleaning machine for best results