Michelin ADV / Off-Road Motorcycle Tubes Michelin Motorcycle Inner Tubes stand out in the market for their heavy-duty build and superior valve stem hardware. Each tube is designed with a unique splice for better balance, specifically tailored for the rigorous requirements and low-pressure needs of off-road adventures. Features: 2.5mm butyl rubber construction Heavy Duty sizes are reinforced for typical front ADV and offroad fitments Features an overlap splice which is stronger than the butt splice technique used by many sub-standard tubes Splice positioned opposite the valve stem to balance the tube Tr-4 / Tr-6 straight metal stem (8mm diameter) Tr-87 90 degree metal stem (8mm diameter) Tr-741 150 degree metal valve stem (8mm diameter) Note : Tr-4 and Tr-6 valve stem styles can be used interchangeably. Packaging may indicate street as these are street compliant, 2.5mm tubes suitable for off-road use.