Description
When you’re pushing your machine to the limit, air pressure retention is non-negotiable. PARTS UNLIMITED Inner Tubes use 100% butyl polymer—not blended synthetics—which means significantly less natural air leakage and more consistent tire pressure between rides. Whether you’re running road course laps or highway miles, a tube that holds air translates to predictable handling, reduced flat rates, and one less pit stop concern.
- 100% butyl polymer construction
- Minimizes natural air leakage
- Maintains pressure longer
- Fits 140/90-15 and 150/80-15
- TR-4 valve stem
- Individually boxed
- Size and valve clearly marked
- MPN: 0350-0327
- Bias-ply tire compatible






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