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When tuning are usually often wheel and tire adapted or generally other combinations installed. However, adjustments must always correspond to a certain standard and, if necessary, be typified. There is an increased risk, especially with cheap production of tires and rims, which can be traced back to either bad or faulty material. In some cases, for example, rubber is saved in order to be able to offer tires at low prices. Furthermore, the life of the driver and all other road users with non-certified products - like the rims - in danger. If a rim breaks, this would have serious consequences, primarily at high speeds. For this reason, tests and stress tests are carried out worldwide before the tire or rim goes on sale. So should cheap bikes & plagiarism per Law have no chance.
Eligibility Complications
- A document that should serve as proof does not exist.
- Minimum and maximum distances of the wheel are not properly maintained and can cause rubbing on/in the wheel housing or other components (keyword freedom of movement).
- The wheels protruding from the wheel housing. The prescribed wheel cover is not guaranteed.
- The area of use is not permitted for the vehicle.
the most asked questions
- rims and Lowering springs are registered and installed. Do I also have to register my standard winter wheels?
- If the standard rims are different ET own than the rims from the change acceptance, then the lowering of the vehicle can lead to complications. In order to be able to guarantee the freedom of movement of the series wheels, it is advisable to consult an expert or certified inspector to have the situation assessed. If this is the case, then you should contact the vehicle manufacturer to obtain the necessary documents for the standard rims.
- Only 195 and 215 tires are typed in the vehicle registration document. Are you still allowed to use 205 tires on the standard rim in degrees?
- Should others than specified by the vehicle manufacturer in the COC papers Approved tire sizes are installed on the standard rim, this may be possible with an individual approval. Requirements: The size of the tires must correspond to the permissible tolerance of the rolling circumference compared to the standard tires. The tire width and internal width of the rim must also be compatible. You shouldn't forget the load and speed index. The tire must also be E-approved. If a value does not match, especially if it is undercut, then problems with the electronic control systems (e.g. ABS) can occur. The speedometer may also show an incorrect speed. If a non-approved tire size is to be fitted to the standard rim, you should contact an expert in advance.
- Is subsequent powder coating of rims permitted by law?
- Due to the heating during the powder coating, the material - in the case of alloy wheels, the aluminum - can change, so that the load-bearing capacity of the wheel may suffer. Without another wheel test you can no longer take part in road traffic with these rims. The problem: the rim can also no longer be tested, since the wheel test is a destructive test.
Strength reports do not count as approval - they are just snapshots!
It can only be used for an individual operating license according to § 21 StVZO if the wheel manufacturer can assure that the quality of production still corresponds to the operational strength of the tested rims.
proof of quality
- Experts therefore recommend only buying car parts that have a parts permit / a Teilegutachten feature. The operational safety and stability of the rims are essential in order to be able to guarantee road safety for the vehicle.
- One of the most common stipulations is that always die Freedom of movement of the wheel must be ensured. Even a slight rubbing can cause a tire burst in the long run.
- Keep playing wheel cover an important role: If the coverage is insufficient, stones, dirt or ice could hit other road users behind the vehicle and possibly damage areas such as the windscreen. You also want to avoid coming into contact with rotating wheels. Therefore, any conditions must always be observed and structural adjustments made.
- Important: A general operating permit (ABE) for a specific wheel not necessarily be unconditional! Here, too, if there are conditions, the adjustments mentioned must be made immediately. One modification acceptance by a test engineer with later entry in the vehicle documents may be required. This also applies to wheel/tire combinations whose dimensions correspond to the standard tires or standard wheels.
The offset (ET) is often decisive
If the ET is too low, the wheel would protrude from the wheel housing. So it can grind on the wheel housing. At a higher one Offset it would disappear in the wheel arch and maybe rub on the inside of the chassis parts. Basically, special tuning rims often differ greatly from the standard wheels, which unfortunately often leads to sometimes complex conditions on the vehicle.
Conclusion
- All in all, a number of things must be fulfilled in order to be able to guarantee road safety. Parts reports, for example, must be from certified manufacturers. It is also necessary that the corresponding instructions and rules are noted and proper assembly takes place. Furthermore, the freedom of movement of the wheel must never be restricted. If these points are met, nothing stands in the way of approval/registration within the meaning of the Road Traffic Regulations.
Of course, that wasn't the end of it.
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