Features: Chain Roller: Reduce Drag - In racing only the best components will make you stand out. Replace the roller for instant improvements in lowering chain drag and increasing reliability. Seal Protection - Rollers feature an outer mechanical seal to protect the bearings from dirt and water. High Performance - The outside diameter and offset improve drive train speed and tension accuracy over stock & cheap replacement rollers. Wear-Resistant - Wear-resistant and does not need to be replaced frequently. Perfect Fitment - All rollers are machined not molded to ensure a perfect fit. Easy To Use - Designed as a direct replacement for the OEM. NOTE: Please carefully check the goods appearance, size, shape and then compare with your original parts before ordering, thank you. Chain Support: High-Performance - design to prevent chain jumping and make it working stably. Aircraft-grade T6-6061 Aluminum & Nylon - Made from premium aluminum & Nylon for great sturdiness and ensure a longer lifespan. Hard-anodized Surface - The surface is treated by anodizing which greatly improves strength, ruggedness, and corrosion resistance. CNC Machined - Machining by CNC technology, provides high precision and attractive Appearance. Guard Roller: Wear-resistant Nylon - Made from wear-resistant nylon that lasts much longer than other products on the market. Prevent Derailment - The protruding part on the roller prevents derailment when you’re riding hard on the rough terrain. Package Included:1 x Upper Roller1 x Lower Roller1 x Swing Arm Guard Roller1 x Lower Rear Chain Support Fitment:For Yamaha Blaster 200 YFS200 1988-2006For Yamaha Blaster 200 YFS200SE Special Edition 2006 Disclaimer:Nicecnc parts are not sponsored or endorsed by, or affiliated with the brands its parts fit, including Yamaha, Polaris, Can-am, Arctic Cat, Suzuki, Honda, Kawasaki, Ski-Doo, etc.