UFO Black Chain Guide for Yamaha YZ 125/250 08-, YZ 250F 07-, YZ 450F 07-, WR 250F 07-, WR 450F 07- & Fantic XX/XE/XEF 125-450 2021-

The black UFO chain tensioner block is a durable plastic component that monitors chain tension and provides protection for off-road motorcycles. Specially designed for popular models such as the Yamaha YZ, WR and Fantic XX/XE/XEF, this block combines easy installation with reliable performance.

• Color: Black
• Material: Plastic
• Compatibility: Yamaha YZ 125/250 (2008+), YZ 250F/450F (2007+), WR 250F/450F (2007+), Fantic XX/XE/XEF (125-450, 2021+)
• Design and construction: Compact, robust, and engineered for a reliable fit within the chain system layout
• Ease of installation: Simple installation with a precise fit; minimal tools required
• Brand quality: UFO is known for its strong, race-focused off-road riding accessories

With this chain tensioner block, you maintain consistent chain tension, which reduces wear on the chain and sprockets and increases overall riding efficiency. Its lightweight plastic design provides sufficient strength for daily use and sporty sessions, while its compatibility with multiple popular models offers versatility. A practical upgrade for riders who value reliability and simple maintenance procedures.