UFO Black Chain Block for Yamaha YZ 125/250 03-08 & YZ 250F 03-08 & YZ 450F 03 & WR 250F/450F 03-06

The black UFO chain guide block is a heavy-duty replacement for the chain guide on Yamaha YZ and WR motorcycles from the 2003–2008 model years. A reliable component for riders seeking consistent chain tension and long-lasting performance.

• Color: Black
• Compatibility: Yamaha YZ125/250 (2003–2008), YZ250F (2003–2008), YZ450F (2003), WR250F/WR450F (2003–2006)
• Material: High-quality plastic for impact resistance and lightweight durability
• Fit: Precision-engineered to follow OEM specifications for easy installation
• Maintenance: Low maintenance requirements thanks to its durable, wear-resistant material

Its user-friendly design ensures reliable chain guiding without complicated adjustments. Ideal as a replacement during routine maintenance or when repairing worn components. MPN YA03870-001 / PL2.84525 guarantees the correct reference for your Yamaha motorcycle. UFO is known for practical, durable motorcycle parts focused on realistic performance in everyday racing conditions.