The Finish Line Grunge Brush - single brush is designed for scrubbing bicycle chains, chainrings, derailleurs, and drivetrain areas, giving riders and mechanics a clearly identified drivetrain cleaning brush in a practical single brush format.

It is based on Finish Line's product-specific formula or tool design for this maintenance task: two-ended brush with a chain-cleaning end and detail brush end. Use the exact product type, size, and compatibility notes to confirm it matches your bike, component, or service routine before ordering.

Key Features

• Exact Format: single brush package for scrubbing bicycle chains, chainrings, derailleurs, and drivetrain areas.
• Tool Purpose: two-ended brush with a chain-cleaning end and detail brush end.
• Application Area: Designed for scrubbing bicycle chains, chainrings, derailleurs, and drivetrain areas.
• Service Format: single brush for cleaning work.

Benefits

• Scrubs chain and drivetrain grime more effectively than a rag alone.
• Two-ended design helps reach both broad and tight drivetrain areas.
• Useful before applying fresh lubricant.

Best For

• Chains, chainrings, derailleurs, and drivetrain crevices.
• Regular drivetrain cleaning.

Specifications

• Brand: Finish Line
• Model: Grunge Brush
• Product Type: Drivetrain cleaning brush
• Size: single brush
• Compatibility: scrubbing bicycle chains, chainrings, derailleurs, and drivetrain areas
• SKU: BI.61978
• Manufacturer Part Number: G50000101
• UPC: 036121680906