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Electric Motorbikes
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Tyres

Michelin 19MER Heavy Duty MX Tube 100/90–120/80-19 Rear

SKU: EMOT-PRT-MIC-MED-HEA-DUT-MX-100-90-19


Michelin Medium Heavy Duty MX Tube 19MER – Reinforced Off-Road Performance

 

💥 Stop Letting Flats Ruin Your Ride

You’re mid-race or deep in the trail, and boom, your rear tyre gives out. Nothing kills momentum like a flat. If you’re still running stock or lightweight tubes, you're leaving your ride, and your results, wide open to failure.


🛡️ The Upgrade Serious Riders Swear By

Enter the Michelin 19MER Heavy Duty MX Tube. Built for torque-loaded electric bikes and brutal terrain, this medium/heavy-duty tube gives you race-proven puncture resistance and unbeatable peace of mind. It's not just another tube, it's flat insurance for your rear wheel.


🔧 How to Go from Frustrated to Flat-Proof in 3 Steps

  1. Pick your size – Fits rear tyres 100/90-19 to 120/80-19

  2. Install with ease – Flexible, durable, and ready for battle

  3. Ride with confidence – Hit the track or trail without second-guessing your setup


⚠️ What Happens If You Don’t Upgrade?

  • Another weekend ride cut short by a pinch flat

  • Costly tyre or rim damage from repeated blowouts

  • A critical race or ride lost due to cheap equipment


✅ Here’s What Happens When You Do

  • Confidence in every corner and landing

  • No more backups or spares clogging your pack

  • Your electric bike performs like it was meant to, no weak links


🏁 Ready to Ride Harder, Smarter, Longer?

Don’t let your tube be your bike’s weakest part.
Grab the Michelin 19MER from eMotoX Sports today, engineered for elite performance, trusted by top riders, and fully compatible with high-performance e-MX builds.

 

➡️ Order now. Ride flat-free. Never look back.

 

Technical Data:

When it comes to quality and durability, Michelin is a brand that stands out, and the Michelin Medium Heavy Duty MX Tube 19MER is no exception. Designed for motocross, enduro, and off-road riding, this reinforced inner tube provides superior puncture resistance and long-lasting performance in even the toughest terrains.


🗝️ Key Features:

Medium Heavy-Duty Construction – With a 2.5mm thick rubber wall, this tube offers excellent puncture and pinch-flat resistance.
Optimised for Motocross & Enduro – Engineered for dirt bikes, MX, and off-road motorcycles, ensuring reliable performance.
Durable Butyl Rubber Material – Provides enhanced air retention, reducing the need for frequent re-inflation.
TR4 Valve (Straight Metal Stem) – Equipped with a TR4 metal valve, ensuring secure air retention and easy inflation.
Versatile Fit – Compatible with a variety of 19-inch motorcycle tires.

 

📊 Technical Specifications

Specification Details
Brand Michelin
Model 19MER Medium/Heavy Duty MX Tube
Tube Type Butyl Inner Tube
Tyre Compatibility 100/90-19 to 120/80-19
Wheel Size 19 Inch (Rear)
Material High-grade Butyl Rubber
Wall Thickness Medium/Heavy-Duty (approx. 2.5 – 3 mm)
Valve Type TR-4 (Straight Metal Valve Stem)
Use Case Motocross, Enduro, Off-road
Puncture Resistance Enhanced (Heavy-Duty grade)
Temperature Resilience High (suitable for high-heat and heavy loads)
Weight Approx. 850g – 1.1kg (varies slightly by batch)
Country of Manufacture EU (exact country may vary by distribution)


🏁 Application & Use Cases

The Michelin 19MER Medium/Heavy Duty Tube is engineered for rear wheel setups in off-road motorcycles, offering robust performance for both recreational and competitive use. It's a trusted choice for riders who push the limits in rugged environments.


✅ Ideal For:

  • Motocross (MX): Intense track use with high-speed jumps, berms, and rhythm sections.

  • Enduro & Trail Riding: Demanding trails with rocks, roots, and unpredictable surfaces.

  • Hard Enduro & Hare Scrambles: Technical riding where puncture protection is critical.

  • Off-Road Adventure Touring: Riders seeking extra durability over standard-duty tubes.

 

Fits rear tyres ranging from 100/90-19 to 120/80-19 – check your tyre sidewall for compatibility.


⚠️ Not Suitable For:

  • Road-only use (tube is optimised for off-road dynamics).

  • Front wheel applications (this model is rear-specific).

  • Ultra-lightweight racing where weight savings outweigh durability needs.


📋 Fitment Table – Petrol & Electric Bikes

Brand Popular Model Tyre Size Fitment Position
KTM 250 SX-F, 450 SX-F 110/90-19, 120/80-19 Rear
Yamaha YZ250F, YZ450F 110/90-19, 120/80-19 Rear
Honda CRF250R, CRF450R 100/90-19, 110/90-19 Rear
Kawasaki KX250, KX450 110/90-19 Rear
Suzuki RM-Z250, RM-Z450 100/90-19, 110/90-19 Rear
GasGas MC 250F, MC 450F 110/90-19, 120/80-19 Rear
Beta RR 4T 350, 390, 430 110/90-19 Rear
Husqvarna FC 250, FC 450 110/90-19, 120/80-19 Rear
Sur-Ron Ultra Bee (w/ 19" rear mod) 100/90-19, 110/90-19* Rear (Modified)
Talaria MX4 / Sting R (19" wheel upgrade) 100/90-19* Rear (Upgraded)
Stark VARG 110/90-19, 120/80-19 Rear

🛠️ Fitment for Sur-Ron and Talaria assumes 19” rear wheel conversion or upgraded swing-arm setups.


📌 Fitment Notes

  • Rear Wheel Only: This tube is designed specifically for 19” rear wheels and is not suitable for front tyre applications.

  • ⚙️ Tyre Size Compatibility: Supports a wide range of rear motocross tyre sizes:

    • 100/90-19

    • 110/90-19

    • 110/80-19

    • 120/80-19

    • Legacy size 4.00-19

  • Electric Bike Fitment:

    • Sur-Ron Ultra Bee and Talaria MX4 / Sting R require a 19” rear wheel conversion kit or swingarm upgrade to fit this tube.

    • Stark VARG is fully compatible out-of-the-box with 110/90-19 and 120/80-19 rear tyres.

  • 🔍 Always Check Your Tyre Sidewall: Confirm your current tyre size and rim dimensions before purchase to ensure correct fitment.

  • 🏁 High-Performance Use: Ideal for motocross, enduro, trail, and hard enduro riding. Offers enhanced puncture protection and sidewall support for demanding conditions.

  • 🛠️ Valve Stem: Features a TR-4 metal valve stem, compatible with most MX and enduro wheel assemblies.

 

📦 What’s Included

Item Quantity Details
Michelin Medium/Heavy Duty Tube 1x Size 19MER – Fits 100/90-19 to 120/80-19 rear tyres
Valve Type 1x TR-4 Straight Metal Valve Stem
Original Manufacturer Packaging 1x Sealed for authenticity and protection
Fitment & Inflation Instructions 1x (Printed) Basic guidance on installation and pressure settings

🛠️ Tyre, wheel, and tools shown in images are not included.

 

⭐️ 5-Star Rating Table

Category Rating Comment
Durability ⭐⭐⭐⭐⭐ (5.0) Reinforced butyl construction handles rugged terrain and aggressive riding.
Puncture Resistance ⭐⭐⭐⭐⭐ (5.0) Excellent protection from pinch flats and sharp object punctures.
Ease of Installation ⭐⭐⭐⭐☆ (4.5) TR-4 metal valve stem aligns cleanly; flexible enough for smooth fitting.
Ride Quality ⭐⭐⭐⭐☆ (4.6) Balances support and compliance—no harsh feel despite added thickness.
Value for Money ⭐⭐⭐⭐⭐ (5.0) Significant performance upgrade over OEM tubes with long service life.
Electric Bike Fitment ⭐⭐⭐⭐☆ (4.7) Supports high torque output when paired with 19” rear conversions.
Overall Performance ⭐⭐⭐⭐⭐ (4.9) A top-tier choice for both petrol and electric off-road motorcycles.

 

🏁 Ideal For

Use Case Description
Motocross Racing (MX) Designed for high-impact, high-speed track environments with jumps and berms.
Enduro & Hard Enduro Excellent for technical terrain with rocks, roots, and extreme obstacles.
Trail & Off-Road Riding Durable enough for long-distance trail rides across mixed surfaces.
Electric MX Bikes Handles sudden torque bursts from bikes like Stark VARG and Sur-Ron Ultra Bee.*
Training & Practice Days Reduces risk of flats during repeated session riding or amateur events.
Riders Upgrading OEM Tubes Ideal replacement for stock tubes prone to pinch flats or leaks.
Heavy Riders or High Load Setups Reinforced construction supports added weight and aggressive compression.

⚠️ Electric models must be equipped with a 19” rear wheel setup.


⚙️📈 Bike Inner Tube vs. Performance

 

Michelin Medium Heavy Duty MX 19MER Tube 100/90-19 & 120/80-19 2.5mm Thickness Material Butyl Line Graph | eMotoX Sports

Diagram: Line graph showing Michelin Tube 19MFR upgrade

 

Here's a line graph showing how the Michelin 19MER compares to other inner tube types across five key performance categories:

  • Puncture Resistance

  • Air Retention

  • Ease of Installation

  • Durability

  • Value for Money

The Michelin 19MER consistently scores near the top, especially in durability and value, making it a strong all-around performer for both petrol and electric MX riders. Let me know if you’d like to highlight this on your product page or turn it into a downloadable comparison sheet.

 

Michelin Medium Heavy Duty MX 19MER Tube 100/90-19 & 120/80-19 2.5mm Thickness Material Butyl Radar Graph | eMotoX Sports

Diagram: Radar graph showing Michelin Tube 19MFR upgrade

 

Here is a radar chart comparing the Michelin 19MER against other inner tube types across five critical performance factors:

  • Puncture Resistance

  • Air Retention

  • Ease of Installation

  • Durability

  • Value for Money

The Michelin 19MER stands out with excellent balance—offering high durability and puncture resistance, solid air retention, and strong value—without major trade-offs in install ease. Let me know if you'd like this adapted into a web-friendly image or infographic for your product page.

 

✅ Verdict: A Proven Upgrade for Serious Riders

The Michelin 19MER Medium/Heavy Duty Tube delivers a rare blend of strength, performance, and versatility that places it at the top of its class. Whether you're racing motocross, tackling technical enduro trails, or upgrading your electric MX build, this tube provides a dependable solution to one of off-road riding’s most common failure points: flats.

Key Advantages:

  • 💪 Superior puncture resistance without the excessive weight of ultra-heavy-duty tubes

  • ⚖️ Balanced ride feel—stable in corners, compliant over rough terrain

  • Torque-ready for electric bikes like Sur-Ron and Stark VARG with 19" rear wheels

  • 💸 Exceptional value as an upgrade over OEM and standard tubes

  • 🏁 Race-proven reliability trusted by competitive and recreational riders alike

If you're looking for a single inner tube to cover MX, enduro, and e-MX needs—Michelin 19MER is the clear winner.

 

🏍️ Tyre Compatibility Table

Tyre Size Tyre Type Fitment Position Notes
100/90-19 Rear MX/Enduro Rear Common on 250cc bikes
110/90-19 Rear MX/Enduro Rear Standard fitment for many 250–450cc models
110/80-19 Rear Trail/Enduro Rear Slightly lower profile; ensure rim match
120/80-19 Rear MX/Enduro Rear High-volume rear tyres (esp. electric MX)
4.00-19 Vintage MX/Enduro Rear Classic size; verify bead profile


🔍 Fitment Notes

  • ✅ Compatible with all 19" rear wheels supporting tyres in the 100/90 to 120/80 range.

  • ⚠️ Ensure that the inner tube size matches the tyre width and aspect ratio for safe inflation.

  • 🔧 Always inspect for pinch risks during install—use talc powder and avoid over-stretching.

  • 🛠️ Best paired with Michelin StarCross, Dunlop Geomax, Maxxis Maxxcross, or similar competition-grade rear tyres.

 

❓ Frequently Asked Questions (FAQ)

🛞 What tyre sizes does the 19MER tube fit?

This tube fits rear tyres sized 100/90-19, 110/90-19, 110/80-19, and 120/80-19. It’s compatible with most 19” rear motocross and enduro wheels.

⚙️ Is this tube suitable for electric dirt bikes like Sur-Ron or Stark VARG?

Yes—with the correct 19" rear wheel conversion, it fits models like the Sur-Ron Ultra Bee, Talaria MX4, and Stark VARG. Ensure your bike is equipped with a compatible tyre size and rim.

🔩 What type of valve stem does it use?

The tube uses a TR-4 straight metal valve stem, designed for high-pressure retention and rugged off-road use.

🧰 Is this tube easy to install?

Yes. While it is thicker than standard tubes, it remains flexible and fits easily with proper tyre tools and lubricant or talc. Always check for pinch points during installation.

🔄 How does this compare to ultra-heavy-duty tubes?

The Michelin 19MER offers similar puncture resistance but weighs less and delivers a more comfortable ride. It’s ideal for riders who want a balance between protection and responsiveness.

🏁 Can this be used for racing?

Absolutely. It’s a popular choice in amateur and professional motocross and enduro racing, offering reliable performance under pressure.

🔧 Do I need rim locks with this tube?

While not strictly required, rim locks are recommended for high-torque applications or lower tyre pressures to prevent tube slip and valve damage.