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100cc Line
RX 32–SV, MX 32–SV, R 31–SV AND M31–SV – THESE ARE THE
ACRONYMS WHICH IDENTIFY THE RANGE OF BIREL CHASSIS FOR THE 100CC
CLASSES. THE WHOLE LINE WAS DEVELOPED BY BIREL’S RACING DEPARTMENT
WITH THE IMPLEMENTATION OF SOME IMPORTANT AND EFFICIENT TECHNICAL
NOVELTIES.
The line 100cc for
direct-drive classes guaranteed several successes for Birel,
particularly in a National context where figures are the most
important element for drivers.
Such results are the
fruit of the work carried out by Birel’s Racing Department, whose
job it is to identify technical solutions for the line of Racing
products.
The goal has always
been to search for innovative technological solutions but also the
adaptability of the chassis to different types of tracks and tires.
The use of a Birel
Racing chassis easily guarantees a good starting set up. In this way
even the more inexperienced drivers can quickly find a satisfying
balance. At the same time, thanks to several available adjustments,
expert drivers can efficiently personalize and fine-tune the set up.
Thanks to these
premises it is not difficult to understand how Birel chassis are
among the most frequently chosen by drivers of the Junior and ICA
categories. With their experience, these drivers appreciate how easy
it is to adjust these chassis and how uniform their performance is
no matter what the track conditions are.
There are four
available models, all identified by the SV code. There are two R
series chassis and two M series chassis. The R range will include a
version mainly constructed with 32 mm rails (RX 32–SV) and a further
version with mixed 30 and 32 rails (R31–SV).
The R line is
particularly effective with soft tires and dry track conditions, but
has also achieved remarkable success in the Junior classes, thanks
to the fact that it keeps the chassis ‘free’, thus exploiting the
engine’s power at its best.
Two other models from
the M line are the models MX 32-SV and M 31–SV. In comparison with
the R line, the rails’ diameters are the same but the
characteristics of design and the performance are radically
different. Whereas the R range is characterized by straight rails in
the tank area, the M range has a curved design.
The M series’ technical
characteristics generally guarantee more ‘grip’ and efficiently
adapt to medium-hard compound tires and slippery tracks.
In terms of set-up, all
chassis have top range Freeline HQ accessories, magnesium rims and
Motorsport PVC sticker kits. For all the 4 models, the new 2007
changes concern the structure and some of the main aspects of the
bodywork. Several solutions were tested and for each model
optimal-balance compromises between front and rear were achieved.
Among the developments which have been introduced, the most
important concerns the new ‘Cs’ of the small spindle: they have new
camber and caster, thus guaranteeing better grip at the front
without jeopardizing the smoothness.
Always at the front,
two different torsion-bars can be adopted, whereas at the rear the
bearings have new flanges which allow for significant adjustments to
be carried out.
In comparison with
2006, only the 1040 pitch has been adopted, as it proved to be the
best in terms of balance. For all the range the recently approved
front brakes will be available as an optional.
<< THE RACING
DEPARTMENT DEVELOPS TECHNICAL SOLUTIONS FOR EACH MODEL, FROM THE
JUNIOR TO THE INFANT KF1 CLASSES >>
Changes
Looking at the front, two different torsion-bars can be
adopted: the one further back gives more grip to the rear, whereas
the second one improves the grip at the front. Among the changes are
also the small spindle’s ‘Cs’, the camber and caster, which
guarantee a better grip at the front without jeopardizing the
smoothness. It is no however longer possible to change the pitch of
the flange on the rear bearing; in-depth tests have shown the 1040
being the ideal pitch. Concerning the rear, the bearing housings can
be fastened vertically in various positions: the lower they are
fastened, the higher will be the ‘grip’. The new flange also houses
the ‘hybrid’ 50mm-diameter bearing. This means that the
external diameter is smaller in order to improve smoothness and
reduce weight.
Design
One of the main characteristics of Birel karts is their design. As
far as this is concerned, users are increasingly more demanding and
the market awards those products which can differentiate themselves
in terms of personality and image, as well as technology. Many
accessories are anodized in blue and great attention has been paid
to even the smallest details. A practical example of this philosophy
is the excellent workmanship of the braking systems.
Call for
prices!
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