"Offset" is the distance between the mounting surface or the contact face of the wheel on the brake drum. It is an imaginary line passing through the center of the rim profile. With the offset, it is also possible to determine the greatest distance that we can leave between the contact face of the wheel on the brake drum and the rear flap of the rim. Installing an appropriate offset wheel is very important. It maintains the good handling of the vehicle and prevents premature wear of tire and suspension components.
The offset can be classified as positive, zero or negative. Positive indicates that the seating face of the wheel is closer to the leading edge than to the rear edge. Light-duty vehicles and pick-ups that derive from these vehicles mostly adopt this type of “off-set”.
The zero offset indicates that the seating face of the wheel is equally divided, this means, in the center of the rim. This type of "off-set" is generally not used for conventional applications because of the constructive characteristics of the current suspensions.
In the case of negative offset, the wheel set face is closer to the rear edge than to the leading edge. This type of offset is usually used in medium and large pickups, for example: Ford F-1000, F250, Ranger and Chevrolet D20 and Silverado.
2. PCD “ Pitch Center Diameter”
The PCD of a wheel is the distance between the fixing holes and the number of holes the wheel has. This distance between the holes is an imaginary circle passing through the center of each hole. The PCD is the "drilling" of the wheel, that is, the most known data of professionals (4x100, 5x100, 4x98, etc.).
In addition to the PCD, another issue to be respected at the time of assembly is the correct seating of the inner part of the wheel next to the hub of the vehicle. As each manufacturer has a wheel hub pattern, the market uses centering rings so that the same wheels can be mounted on most possible cars, avoiding a very large number of wheel references. These rings are used to adjust the dimension of the center region of the wheel to the vehicle hub eliminating slacks and possible performance problems. These rings are well known in the market and have colors for each vehicle manufacturer.
Our wheels are guaranteed against defects in the raw materials and in the production process / labor, considering its normal use, for a period of 12 months from the date of manufacture. For structural defects, the warranty is for 5 years. You are requested to submit the invoice for the purchase of the product.
The wheels with proven failures will be replaced at no cost to the customer, after analysis by our technical department and confirming that the defects occurred under normal use, arising from problems in the raw material or in its production process.
Exchanges do not cover installation costs. The warranty does not cover the occurrence of oxidation due to the use of chemicals, negligence in maintenance, various meteorological conditions, and the use of the wheels in non-specification vehicles, fitted with separators, adapters, or mounted in an unsuitable way.
Acceptance of the exchange requests by the CTA shall be conditional on the consumer's responsibility that the interface components of the vehicle (suspension, brakes, fenders, chassis, etc.) have been inspected after fitting the tire to the wheel. And that a final inspection has been carried out where there has been no interference of the tire and wheel with bumpers, chassis or other components of the brake or suspension of the vehicle.
La planta de CTA tiene las certificaciones ISO9001 e ISOTS 16949 (recién obtenida en el año de 2016). Además, los productos y las instalaciones productivas están en conformidad con la norma CONEVIN (Venezuela), y tienen la certificación de INMETRO, lo que habilita la planta a exportar sus productos a Brasil, mercado más importante de Latinoamérica.
CTA recibió distintas premiaciones y certificaciones de los clientes del mercado original, entre las cuales: EAQF – Certificación Renault Sofasa de Colombia (en Febrero/1997, Abril/2000 y Octubre/2003), y KAIZEN – TOYOTA (Marzo/1999).