Ride harder with fewer flats. This Parts Unlimited heavy duty inner tube uses thick natural rubber (2.8–3.0 mm) to deliver increased resistance against punctures and pinch flats—ideal for motocross and enduro conditions where rocks, roots and hard impacts can quickly damage standard tubes. The TR-4 center metal valve stem provides a secure, durable fit for off-road wheels.
How it helps: If you’re tired of losing ride time to tube failures, this heavy duty option adds durability where it matters most, helping you finish motos and trail loops with more confidence.
Key features:
✅ Extra-thick construction (2.8–3.0 mm) for improved puncture and pinch-flat protection
✅ Natural rubber for very high tear strength and long service life
✅ TR-4 valve stem (round base, threaded metal stem with nuts) for secure installation
Benefits of using it:
🔹 More reliability off-road compared with standard tubes in harsh terrain
🔹 Less downtime thanks to improved resistance to pinching and cuts
🔹 Great all-round choice for riders who want durability without switching to mousse inserts
Technical specifications:
📌 Tyre fitment: 70/100-19
📌 Rim diameter: 19"
📌 Tube thickness: 2.8–3.0 mm
📌 Valve stem type: TR-4 (round base), center metal valve (threaded/nuts)
📌 Material: Rubber (natural rubber)
📌 Mounting position: Front/Rear
📌 Units: Each
Why choose this product?
⭐ Proven heavy duty construction designed for demanding off-road use
⭐ Durable natural rubber for strength and tear resistance
⭐ Practical upgrade to reduce flats and keep you riding longer
