15 Inch Motorcycle Inner Tube

15 Inch Motorcycle Inner Tube

Size:130/90-15
Width:120mm
Weight:640g
Valve:TR4
Material:Natural/Butyl rubber
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Description
Technical Parameters

Products Description

 

300-21 motorcycle inner tube details

Every 15-inch motorcycle wheel needs a tube made just for it. Our 15 inch motorcycle inner tube is specially shaped for 15-inch rims. If you use the wrong size tube, air can leak out or your tire could get damaged. With ours, you get:

👌 Perfect 15-inch fit – No air leaks, no tire damage

🔒 Stays inflated longer – Holds air better than standard tubes

🛡️ Extra protection – Strong layer resists nails and sharp stones

 

Built Tough for Long Rides:
We use high-quality rubber that's:

Stronger and lasts longer – Doesn't crack under sun/rain

Flexes with the road – Soaks up bumps for a smoother ride

Saves you money – Works with your tire to make it last longer

 

You'll Feel the Difference:

🛣️ Less shaking – Rides smoother on rocky paths

Uses less fuel – Moves more easily so your bike works less

All-weather reliability – Works in hot summers or cold winters

 

Simple Truths:

▶️ Size: Only for 15-inch wheels (check your rim first!)

▶️ Thickness: 2mm or 3mm strong rubber – stops punctures

▶️ Air Pressure: Works best at 30-35 PSI (check monthly)

300-21 motorcycle inner tube with valve

 

Model Size

 

Size

15 inch motorcycle inner tube

Tensile Strength

8-12Mpa

Valve

TR4

Elongation

450%

Place of Origin

Shandong China

Material

Natural Rubber

Warranty

1 Year

Qty/CTN

500pc

Color

Black

OEM

Acceptable

 

Production Progress

 

15 inch motorcycle inner tube for motorcycle tire

 

15 inch motorcycle inner tube production:
★Rubber mixing: Keep it clean

★Banbury mixing: Reduce the mixing of air in the rubber compound

★Filter: Filtration is a necessary step in rubber inner tube processing
★Final refinement: Filter out impurities in the rubber compound
★Extrusion: This is an extremely critical step, and its quality will affect the quality of the product.

★Ending joint valve set: We all purchase from specialized valve manufacturers

★Connector: The machine and pressure must be adjusted
★Splicing: Freeze-forming, splicing is to stretch the fetal tube to about 95% of the volume after vulcanization
★Vulcanization: Keep the mold clean and well-vented

★Inspection: Inflate the motorcycle tube to 20% of its volume, then hang it on a conveyor belt for 24 hours, and then conduct a water penetration test.

★Packaging: Fold and put into the packaging required by the customer

 
Company Advantages 

 

Factory Directly Inner Tube for Truck

 

Why Global Dealers Trust Our Tubes

Legacy of Excellence
*30 years of proprietary engineering = unbeatable durability*
→ Our unique manufacturing know-how delivers longer-lasting tubes competitors can't replicate.

Zero-Compromise Quality
*Triple-tested air retention + 24hr pressure checks*
→ Every tube undergoes 3 strict air-holding verifications before shipping.

Swift Global Delivery
*7-15 business days (quantity-dependent)*
→ Most orders reach you within 2 weeks – faster for bulk purchases.

Massive Production Power
*60,000 tubes + 40,000 tire flaps daily*
→ Never worry about stock shortages, even for huge orders.

Stress-Free Ownership
*1-year warranty + dedicated support team*
→ We fix any issues promptly – you ride with peace of mind.

Worldwide Proven Trust
*Sold in 130+ countries since 1993*
→ Join thousands of satisfied dealers and riders globally.

Your Brand, Our Expertise
Custom OEM/ODM + free marketing support
→ Our design team creates tailor-made solutions promoting YOUR business.

 

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