fits model: Tr4. year: 1990–2019.

( Brand: Mmg ), ( Manufacturer Part Number: 100-21 ), ( Part Type: Valve Tube )
The MGTIS 80 100-21 90-19 Inner Tube Set is a comprehensive solution for your bicycle's tire replacement needs, designed specifically for front and rear wheels with different size specifications.
For the front wheel, this set includes two inner tubes, one measuring 3.00/3.25-21 inches, and the other 3.25/3.50-21 inches. These tubes are engineered to fit wheels with straight valves and are ideal for bicycles with tire widths within these dimensions. The 3.00/3.25-21 tube offers a slightly narrower width, making it suitable for lighter use or smaller tire applications. On the other hand, the 3.25/3.50-21 tube provides a wider option, catering to heavier loads or broader tire preferences.
Moving on to the rear wheel, this set comes with two more inner tubes, both designed for 3.50/4.00-19 inch wheels. Just like the front set, these tubes come with straight valves and can accommodate a range of tire widths. The 3.50/4.00-19 tube offers a slightly larger width for heavier loads or broader tire preferences, ensuring durability and robustness.
Made from high-quality materials, these tubes are designed to provide excellent puncture resistance, ensuring that your rides remain uninterrupted. They are also lightweight, ensuring minimal impact on your bike's overall weight and performance. The straight valves enable easy inflation and deflation, making tire maintenance a breeze.
In summary, the MGTIS 80 100-21 90-19 Inner Tube Set is a versatile and comprehensive solution for your bicycle's tire replacement needs, catering to both front and rear wheels with different size specifications and tire width preferences, while ensuring puncture resistance, lightweight construction, and easy inflation and deflation.
Pros of buying a MGTIS 80-100/90-19 inner tube set (front 3.00/3.25-21, rear 3.50/4.00-19, straight valve, TR4):1. Compatibility: The set is compatible with popular tire sizes, making it a versatile option for various vehicles.
2. Durability: MGTIS tubes are known for their high-quality materials, ensuring long-lasting performance.
3. Value for money: The set offers multiple tubes at a competitive price, making it an affordable solution for replacing tires or keeping spare tubes.
Cons of buying a MGTIS 80-100/90-19 inner tube set:1. Limited availability: The tubes may not be readily available in all parts of the world, making it difficult to find replacements if needed.
2. Lack of brand recognition: MGTIS is not as well-known as some other tire tube brands, which may affect consumer confidence.
Conclusion:While the MGTIS 80-100/90-19 inner tube set offers a good value for money with its compatibility and durability, potential buyers should consider the limited availability and lack of brand recognition before making a purchase. If these factors are not a concern, this set could be a suitable option for individuals looking for affordable tire tubes. For those seeking a more recognized brand or wishing to have easy access to replacement tubes, it may be worth investing in a more well-known option.
MMG Inner Tube Set Front 3.00/3.25-21 and Rear 3.50/4.00-19 Straight Valve TR4. Heavy duty durable valve stem.miner Tubes SET, Two tubes. Both TR4 Valve Stem: Centered, Straight Stem, Round Shape to fit on rims with a round valve base.
Included Front 3.00/3.25-21 80/100-21 and Rear 3.50/4.00-19 100/90-19. Fits Tire Rims 21 Front and 19 Rear, Found in many Dirt Bikes 125cc 250cc 450cc. Unbeatable performance and value.