| Advanced extrusion technology ensures consistency and eliminates thin walling problems common with other tubesHigher percentage of butyl rubber for greater elasticity, insulation, air tightness and resistant to high/low temperaturesIndividually pre-aired and inspected utilizing advanced technology to ensure conformance to JIS (Japanese Industrial Standards) specificationsManufactured by one of the world's largest tube manufacturers under ISO 9001 certificationWhen installed, stem is parallel with the edge of the rimStem Angle Type90 degrees/JS87PTube Size4.10x3.50-4 | 