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AR-PRO (2 Pack) 8.5'' x 2" Inner Tubes Compatible with for Xiaomi M365, Gotrax 50/75-6.1 Electric and Gas Scooters, Pocket Bikes, Mobility Scooters - Extra Thick 2.0mm Butyl Rubber

  • Based on 4,325 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, May 18
Order within 11 hours and 40 minutes
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Size: 8.5" x 2" (TR4A)


Style: Extra Thick Tubes (2-Pack)


Features

  • 8.5 INCHES X 2 INCHES SCOOTER INNER TUBE REPLACEMENT - These inner tubes are an exact fit for Xiaomi M365 electric scooter. Both front and rear tires of this scooter model are 8.5 inches in diameter and 2 inches thick. These tubes are the same as the 50/75-6.1 and 50-134 tire and inner tube sizes.
  • COMPATIBLE WITH A WIDE VARIETY OF SCOOTERS, BIKES, AND MORE - Fits most gas and electric scooter models, including ones from Xiaomi, Razor, Bladez, Gotrax, and more! These inner tubes are also compatible with pocket and mini bikes, mini choppers, and mobility scooters.
  • HIGH-QUALITY BUTYL RUBBER INNER TUBES - Made from premium-quality butyl rubber, these inner tubes provide the strength, flexibility, and durability necessary for the optimum riding performance of scooters, minibikes, and more. Aside from this, these inner tubes have at least 50% enhanced lifespan with their high weather, wear, and tear resistance.
  • THICK AND EVENLY-MOLDED INNER TUBES FOR MAXIMUM COMFORT - Thick, shock/vibration absorbent, and puncture-resistant, these inner tubes have it all. At 2 mm in thickness, these inner tubes are 0.5 mm thicker than average inner tubes in the market. Not only are they thick, but these inner tubes are also evenly molded, having consistent thickness throughout the tubes entire length.
  • SAFETY FIRST WITH HEAVY DUTY INNER TUBES - Safeguard your safety and the safety of your scooter in any weather and season with these HEAVY DUTY inner tubes. With thorn-resistant and self-sealing capabilities, these inner tubes prevent explosive punctures whether you encounter a thorn or pinch your tires flat, these inner tubes will create an instant airtight seal that you can depend on at all times.

Brand: AR-PRO


Size: 8.5" x 2" (TR4A)


Rim Size: 8.75 Inches


Section Width: 2 Inches


Tire Aspect Ratio: 75


Load Index: 40


Speed Rating: H


Tread Type: Directional


Rim Width: 8.5 Inches


Tire Diameter: 8.5 Inches


Rim Size: 8.75 Inches


Load Index: 40


Speed Rating: H


Tread Type: Directional


Automotive Fit Type: Vehicle Specific Fit


Load Range: H


Seasons: Year Round


Brand Name: AR-PRO


UPC: 640117914816


Unit Count: 2.0 Count


Model Number: 8-1/2"x 2"


Manufacturer Part Number: 8-1/2"x 2"


Manufacturer: AR-PRO


Included Components: 8.5x2" Inner Tube


Manufacturer Warranty Description: NoApplicable


Size: 8.5" x 2" (TR4A)


Section Width: 2 Inches


Tire Aspect Ratio: 75


Rim Width: 8.5 Inches


Tire Diameter: 8.5 Inches


Item Dimensions: 5.91 x 3.15 x 5.91 inches


Item Diameter: 2 Inches


Item Weight: 240 Grams


Vehicle Tire ISO Metric Size Description: 205/50R8.5


Ply: 4-Ply


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great replacement tire tube
This worked well in my son's scooter. It was easy to install and it is holding air well. The quality seems to be good and the price was great. If anything changes I'll update my review, but so far it seems to be a very good replacement.
Reviewed in the United States on September 6, 2025 by Elizabeth P.

  • Great price, quality tubes!
I got the exactly replacement tubes I needed for my Razor scooter rear tires that were constantly going flat. These are a lot thicker material than the original tubes, which Is a good thing for longevity and strength. They also came with the tire tools that really help get the tire on and off the rim. These were a good price, shipped and fast. I absolutely recommend this seller amd product. ... show more
Reviewed in the United States on June 13, 2025 by Brian

  • worked great
It works great and the angled stem helps.
Reviewed in the United States on January 16, 2026 by CrazyPants

  • Tire
Durability is perfect and size is good
Reviewed in the United States on November 3, 2025 by Carmen

  • Great quality. Correct size.
It’s really great! Just be careful when changing the tire—you might accidentally damage the inner tube while installing the outer tire.
Reviewed in the United States on April 7, 2026 by deardeer

  • Great quality
I ordered the wrong ones but the quality was great.
Reviewed in the United States on March 22, 2026 by Billy Campbell

  • Works as expected
The AR-PRO (2 Pack) 8.5'' x 2" Inner Tubes Compatible with Xiaomi M365, Gotrax 50/75-6.1 and for Electric Scooters, Gas Scooters, Pocket Bikes, and Mobility Scooters with Extra Thick 2.0mm Butyl Rubber works as expected. The inner tube fits the Hover-1 Journey Max scooter, but it is really a pain to replace it - it is necessary to remove the electric motor to have access to the tube valve nut. I hope this tube to last longer than the original one. ... show more
Reviewed in the United States on March 30, 2025 by Cæsar Augustus

  • Terrible product
I bought a set of the extra thick rubber tube for my gotrax. When I had them installed, my rear tire stayed inflated but the front went flat a few days after. Couldn't find a leak in tube. Pumped it back up and again a day later went flat. Notified seller and sent 2 new replacements. I had the front tube replaced again and on way to work, the tube went flat again. Upon inspection it looked as if the seam to tube had split. Had it replaced again. Hesitant to use scooter for work, I rode scooter and same exact tear in seam happened again. Again late for work. The next day, rear tire was flat! I took it to a shop and the rear tire leaked next to the air stem. I decided to purchase the originals and had them installed. Haven't had any issues with flats since. I strongly advise to stay cleared of this brand. Customer service was helpful in sending a extra set, just maybe a bad batch of tubes. In process of trying to get refund. ... show more
Reviewed in the United States on July 5, 2022 by Jordan

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