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(2-Pack) AR-PRO 8.5 Inches x 2 Inches Scooter Inner Tube Replacement - 50/75-6.1 Inner Tubes for Electric and Gas Scooters, Mini and Pocket Bikes, and More Butyl Rubber Inner Tubes

  • Based on 2,053 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Oct 5
Order within 9 hours and 24 minutes
Available payment plans shown during checkout

Size: 8.5x2" (TR4A)


Style: Regular Tube


Features

  • PERFECT XIAOMI M365 COMPATIBLE INNER TUBE REPLACEMENT - Xiaomi's M365 electric scooter model has front and rear tires that are 8.5 inches in diameter and are 2 inches thick. These 2-pack scooter replacement inner tubes have the exact dimensions to fit Xiaomi M365 tires.
  • COMPATIBLE WITH A WIDE VARIETY OF SCOOTERS - This type and size of inner tubes are popular among electric and gas scooters, pocket bikes, mini choppers, mini bikes, and mobility scooters. Several brands that have models compatible with these replacement inner tubes include Razor, Bladez, Gotrax, and more!
  • EXTRA THICK BUTYL RUBBER INNER TUBES - With thick, shock-absorbent butyl rubber, you feel the bumps and potholes as your scooter glides along. These replacement inner tubes are .5 mm thicker than average inner tubes providing a higher impact dampening effect. Aside from that, these tubes are also chemical, weather, tear, and wear-resistant.
  • SAFETY FIRST IS OUR MOTTO: Heavy-duty inner tube and tire. When and if punctured, it immediately creates an airtight seal to prevent damage, destruction and injury to the rider. Safe in any season or weather condition.
  • IMPORTANT NOTE: This replacement kit is an aftermarket product produced by CalPalmy (TM). It meets or exceeds the performance of OEM replacements (based on in-house testing). We do not have any affiliation with or endorsement from any of the manufacturers mentioned.

Brand: AR-PRO


Size: 8.5x2" (TR4A)


Section Width: 2 Inches


Tread Type: Symmetrical


Maximum Pressure: 50 Pound per Square Inch


Rim Width: 8.5 Inches


Tire Diameter: 8.5 Inches


Item Diameter: 8.5 Inches


Item Weight: 0.29 Pounds


Automotive Fit Type: Universal Fit


Brand: ‎AR-PRO


Size: ‎8.5x2" (TR4A)


Section Width: ‎2 Inches


Tread Type: ‎Symmetrical


Maximum Pressure: ‎50 Pound per Square Inch


Rim Width: ‎8.5 Inches


Tire Diameter: ‎8.5 Inches


Item Diameter: ‎8.5 Inches


Item Weight: ‎0.29 Pounds


Automotive Fit Type: ‎Universal Fit


UPC: ‎684753222058


Vehicle Tire ISO Metric Size Description: ‎216/75R8


Construction Type: ‎Multi-layered


Manufacturer: ‎AR-PRO


Item Weight: ‎4.7 ounces


Manufacturer Part Number: ‎8-1/2"x 2"


Date First Available: January 31, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 5

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.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works as described- read the review - need the tools
Size: 8.5x2" (TR4A) Style: Regular Tube
Product is good. Getting them on the rims is another story (not their fault). Watch some videos before you walk this path and know what you’re up against. I managed to get 3 out of 4 done! Buy tire spoons, don’t use the screw driver , and boil the external tire (yes boil it) to make it soft enough to manipulate. Watch more than one video and find one that actually shows the mounting (not just before & after) ... show more
Reviewed in the United States on March 10, 2025 by Tarek NYC

  • Received item quickly
Size: 8.5x2" (TR4A) Style: Regular Tube
It was exactly wanted i ordered and needed.
Reviewed in the United States on September 26, 2025 by Shannon Villegas

  • Hold air.
Size: 8.5x2" (TR4A) Style: Regular Tube
Tires hold air and make my scooter ride that more comfortable.
Reviewed in the United States on September 10, 2025 by Ryan Branson

  • Funciona
Size: 8.5x2" (TR4A) Style: Regular Tube
Es muy bueno, a mi esposo le encantó
Reviewed in the United States on September 20, 2025 by Leydi Cauich

  • Very good product
Size: 8.5x2" (TR4A) Style: Regular Tube
Very good product. Perfect fit.
Reviewed in the United States on May 20, 2025 by Steve

  • Punctured easily when installing
Size: 8.5x2" (TR4A) Style: Regular Tube
Wasted money since both tire tubes were punctured when installing. The tube is very sensitive. We had to order the tire w/o a tube. Wish I can get my money back but it's too late.
Reviewed in the United States on August 31, 2025 by Albert L.

  • Good
Size: 8.5x2" (TR4A) Style: Regular Tube
Worked well
Reviewed in the United States on July 16, 2025 by Violet

  • Good
Size: 8.5x2" (TR4A) Style: Regular Tube
I got it just fine . It’s the fact the delivery driver was to busy on his phone that he delivered it late . If he wasn’t on his phone maybe he would’ve noticed that this order had two parts to it . People need to focus on their job more than a phone call that isn’t obviously important
Reviewed in the United States on May 10, 2023 by cindy

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