Sunstar 12T 520 Chain Front Sprocket for 1987-2001 Honda CR125R 34412

If you're running a CR125R in competitive or high-demand conditions, sprocket wear directly impacts acceleration response and power delivery to the rear wheel. A worn or incorrect front sprocket forces your engine to work harder, reducing efficiency and limiting top-end performance. The Sunstar 12T Counter Shaft Sprocket delivers the precision fitment and material quality your bike needs to maintain consistent gearing performance and durability through season after season of hard use.

This sprocket is purpose-built for the CR125R's demanding drivetrain. The case-hardened chromoly steel construction provides the strength to handle aggressive acceleration without premature tooth wear, while the Parkerizing finish guards against rust and corrosion in wet or salt-air environments. The 12-tooth configuration optimizes the stock gearing balance, keeping your power band sharp without sacrificing low-end bite or high-RPM acceleration. As a direct OEM-spec replacement, installation is straightforward—simply remove the worn sprocket and bolt this one in place.

• Case-hardened chromoly steel
• Parkerizing rust protection
• 12-tooth design
• OEM-spec CR125R fitment (1987-2001)
• Bolt-on installation
• Precision CNC-manufactured
• Sunstar MPN 34412
• Lightweight, robust construction