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Wheels
 As
one of the most important suppliers in the market, together with
manufacturers and importers, CETRO
is confronted
with light alloy and steel wheels of inferior quality and with an
increasing number of cases of inexpert fitting, especially on passenger
cars, commercial and 4x4 vehicles.
The
consequences for road safety are evident, including a negative image of
and influence on the market due to these inferior products.
Parties
involved request the Commission that in line with the development of type
approval for (retreaded) tyres a type approval for (light alloy) wheels
should be developed. The necessary requirements for a type approval are
already available and can be performed by acknowledged European
institutions such as TÜV, DEKRA, TNO, etc. Requirements for fitting can
be regulated in 
line with the tables of CETRO
(European Tyre and Rim Technical Organisation, introduction on www.etrto.org).
Following the development of regulations of this type fitting stations
must comply with the technical standards described below. Normally type
approvals are requested through the proper channels of the UNECE/GRRF/WP29
platform, but due to the importance of this particular issue,
organisations request the Commission to develop a proposal for such a
quality label.
The
type approval for wheels should cover the following:
-
impact
-
fatigue
(long and short)
-
Rim
Rolling test
-
measuring
comparison
And
for fitting parameters:
-
 max.
2% track tolerance (4% for Off-Road vehicles)
-
min.
5 mm clearance between wheels and suspension and steering
-
min.
2 mm clearance between steering and brakes, balance weights
-
min.
2 mm clearance at full turn out (in)
-
min.
3 mm clearance brake elements and wheel, balance weights
-
guaranteed
clearance under coachwork
-
respect
ETRTO tables.
The
following is to be achieved:
-
uniformity
and approval
-
harmonisation
of definitions and applications in EU
-
avoidance
of inferior quality
-
prevention
of inexpert fitting
-
improvements
in road safety
improvements
to active safety in cars. |
