Specification: 8.5x3. Tire outer diameter: 201mm; Inner diameter: 118mm; Tread width: 74mm; Tire groove width: 39mm; Rim diameter: 129mm; Rim width: 7mm; Section height: 36mm. Compatible with wheel hubs with an outer diameter of approximately 5.7 inches, a rim seat diameter of 5.1 inches, and a groove width of 1.45 inches. 8.5 inches refers to the outer diameter of the tire after it is installed on the rim
Size Description: All properly sized solid tires have an inner diameter slightly smaller than the rim's outer diameter. Since solid tires lack air pressure support and can't cling to the rim like inflatable tires, they are intentionally designed with a slightly smaller inner diameter. They stay securely fixed through the material's elastic deformation (continuous contraction after being stretched open). This is a normal design, not a size error; installing solid tires is difficult.
Compatible vehicle models: This 8.5x3 off-road solid tire is compatible with Zero 8 (front wheel), Vsett 8 (front wheel), Vsett 9R/ 9+ and other scooters. If it is for other scooters, please confirm the wheel hub size in advance.
Completely Puncture-Proof & Leak-Proof: Featuring a solid honeycomb structure, it requires no inflation and won't be punctured by sharp objects like nails or gravel. There are no issues of air leakage or blowouts, eliminating the need for frequent tire pressure checks or repairs and saving the hassle of maintenance.
Off-Road Tread Advantages: Our 8.5x3 inch off-road tubeless tire has a 3mm deep tread, suitable for rough road conditions and bad weather. On muddy, gravel or snowy roads, the grooves of the deep tread can fully grip debris like dirt and small stones, enhancing traction and reducing slipping—ideal for users who often ride on rough roads, face snowy winters, and prioritize wear resistance and safety.
Description
Specification:
Outer diameter: 201mm / 7.9 inches
Inner diameter: 118mm / 4.64 inches
Cross-sectional width (tread width): 74mm / 2.9 inches
Cross-sectional height: 36mm / 1.41 inches
Tire bead width: 39mm / 1.53 inches
Tire rim diameter: 129mm / 5 inches
Tire rim width: 7mm
Net weight: 1.03kg / 2.27lbs
Tread depth: 3mm
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Due to the relatively small inner diameter, installing a solid tire poses certain difficulties. Before installation, place the solid tire in boiling water for more than 20 minutes to soften it. Then, apply lubricating fluid to the inner side of the tire and use two to three pry bars/screwdrivers to apply force, expanding the tire and fitting it into the hub. It is recommended to install it together with another person, or go to a nearby repair shop to have a professional install it.