OXA Silicone Rubber Sleeve. The OXA Factory Rubber Bonding is designed to provide a secure seal between the exhaust pipe and silencer on 2-stroke motorcycles. This durable rubber component ensures optimal exhaust performance by preventing leaks and reducing vibrations. Features: Material: High-quality, heat-resistant rubber. Dimensions: Compatible with exhaust joints measuring 25 to 27 mm, 28 to 30 mm, or 30 to 32 mm in diameter. Function: Ensures a tight seal between the exhaust pipe and silencer, enhancing performance and longevity. Installation: Easy to install; recommended to secure both ends with zip ties for maximum sealing efficiency. Note: The images shown are generic and do not necessarily reflect the specific characteristics of the product in question.