Your car tyre is a vital part of your car. It remains the only part of your car that makes direct contact with the the ground. We have come up with various terminologies associated with car tyre and what they mean. When you’re done reading this post properly, terminologies like bead, chunking and carcass won’t be strange to you any longer.
Below are 23 tyre related terminologies and what they mean
1. Cold tyre inflation pressure
Tyre pressure when the vehicle has been parked for three hours or more, or has not been driven more than 1 mile or 1.5 km under that condition.
2. Maximum inflation pressure
The maximum cold inflated pressure to which a tyre may be inflated, shown on the sidewall of the tyre.
3. Recommended inflation pressure
Cold tyre inflation pressure recommended by a manufacturer.
4. Accessory weight
The combined weight (in excess of those standard items which may be replaced) of trans-mission, power steering, power brakes, power windows, power seats, radio and heater, to the extent that these items are available as factory-installed equipment (whether installed or not).
5. Curb weight
The weight of a motor vehicle with standard equipment, including the maximum capacity of fuel, oil and coolant, and if so equipped, air conditioning and additional weight optional engine.
6. Maximum loaded vehicle weight
The sum of:(a) Curb weight(b) Accessory weight(c) Vehicle capacity weight(d) Production options weight.
A metal support for a tyre or a tyre and tube assembly upon which the tyre beads are seated
8. Vehicle maximum load on the tyre
The load on an individual tyre that is determined by distributing to each axle its share of the maximum loaded vehicle weight, and dividing by two
9. Weather side
The surface area of the rim not covered by the inflated tyre
The part of the tyre that is made of steel wires, wrapped or reinforced by ply cords and that is shaped to fit the rim
11. Bead separation
A breakdown of the bond between components in the bead
The tyre structure, except tread and sidewall rubber which, when inflated, bears the load
The breaking away of pieces of the tread or sidewall
Any parting within the tread, sidewall, or inner-liner of the tyre extending to cord material
15. Extra load tyre
A tyre designed to operate at higher loads and at higher inflation pressures than the corre-sponding standard tyre.
The layer(s) forming the inside surface of a tubeless tyre that contains the inflating medium within the tyre
17. Light truck (LT) tyre
A tyre designated by its manufacturer as prima-rily intended for use on lightweight trucks or multipurpose passenger vehicles
18. Load rating
The maximum load that a tyre is rated to carry for a given inflation pressure
19. Maximum permissible inflation pressure
The maximum cold inflation pressure to which a tyre may be inflated
20. Passenger car tyre
A tyre intended for use on passenger cars, multipurpose passenger vehicles, and trucks, that have a gross vehicle weight rating (GVWR) of 10,000 lb. or less
21. Pneumatic tyre
A mechanical device made of rubber, chemicals, fabric and steel or other materials, that, when mounted on an automotive wheel, pro-vides the traction and contains the gas or fluid that sustains the load
22. Reinforced tyre
A tyre designed to operate at higher loads and at higher inflation pressures than the corresponding standard tyre
23. Test Rim
The rim on which a tyre is fitted for testing, and may be any rim listed as appropriate for use with that tyre
Are there some other tyre related terminologies you know but were not listed? Kindly let’s know using the comment section.
Don’t forget to like, rate and share this post.