NEXXUS Truck and Bus Tire Basics

Tire Sidewall Marking Guide

No.	Sidewall Marking	Description
1	NEXXUS	Manufacturer's Brand
2	12.00R20	Tire Size (Section Width × Construction × Rim Diameter)
3	NX999	Tread Pattern / Tire Model
4	STANDARD RIM 8.5	Recommended Standard Rim Width
5	MAX LOAD / INFLATION PRESSURE	Maximum Load Capacity and Corresponding Inflation Pressure
6	SAFETY WARNINGS	Warnings while using the tires
7	TUBE TYPE (TT)	Indicates the tire is designed for use with an inner tube
8	MADE IN CHINA	Country of Manufacture
9	CCC MARK & APPROVAL NUMBER	China Compulsory Certification (CCC) Marking Area
10	DOT TYO XXXX	DOT Identification Code (Plant Code, Tire Code, Production Date)
11	ALL STEEL RADIAL	All-Steel Radial Construction
12	REGROOVABLE	Tire Designed for Regrooving

For more information, please refer to https://nexxustires.com/whats-tbr/

Standard radial tires consist of seven main layers, each contributing to the tire’s flexibility, durability, safety, and fuel efficiency:

Tread: The outermost layer, made of a blend of natural and synthetic rubbers, providing heat resistance and direct road contact.
Inner Liner: The innermost part made of synthetic rubber, holding high-pressure air inside.
Carcass Ply: Located above the inner liner, this layer consists of textile fiber cords that strengthen the tire and determine its loading capacity.
Bead: The edge that secures the tire to the rim, composed of bead wire, steel, and rubber.
Sidewall: Positioned between the tread and the bead, it protects the carcass ply and provides flexibility.
Belts: Also known as the crown ply, these steel cords reinforce the connection between the tread and carcass.
Cap Ply: Made of polyester fabric, this layer prevents overheating and helps maintain the tire’s shape at high speeds.