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RACING LINE - ROTAX DD2
 Birel’s
proposal fo r
the Rotax DD2 Trophy, which was the object of deregulation in terms of
chassis, will be, as well as the much tested and winning model CRY
31-RX, also a version with CRY
30-RX chassis.
For the Trophy promoted by the Austrian firm, Birel drivers will be able
to choose between two different technical solutions: the 31 mm chassis
version is more suited to particularly slippery tracks, whereas the 30
mm chassis version is more conventional, with very good “smoothness” and
best suited to dry tracks.
Both models feature a special rear axle which allows the two-speed
engine with direct drive on the (40 mm) axle to be fitted and HQ
Freeline accessories, such as magnesium rims and anodised components in
Motorsport livery.
The braking system is a last-generation model, similar to the version
featured on the 125 cc range, with 150 mm discs at the front and 200 mm
discs at the rear. The Trophy kit also features the gearbox levers by
the steering wheel and the bumper in compliance with regulations
A, both supplied by Rotax.
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It is ideal for the youth categories of the
Austrian one brand, as it is very “free” and it can
emphasize at best the engines with less power. But more in
general, it is efficient on “gripped” tracks and with summer
heat. Its versatility makes it competitive on every track
and in every condition.
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It offers more grip compared to the version
with 30 mm tubes and also more precision while entering the
bend and stopping. It fits for people who prefer a precise
chassis that, however, adapts at best to every track
condition, always resulting a perfect compromise.
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CRY
30-RX
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CRY
31-RX
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HOMOLOGATION |
*
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2006 11
23
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FRONT STABILIZER |
STANDARD
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DOUBLE
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SIDE STABILIZER |
STANDARD
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STANDARD
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Ø TUBES |
30
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30/32
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WHEEL BASE |
1040
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1040
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REAR WIDTH |
645
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645
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FRONT WIDTH |
715
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715
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LENGTH |
1385
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1385
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AXLE |
40X3X1040F
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40X3X1040F
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BRAKING SYSTEM |
HYDRAULIC
«CX»
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HYDRAULIC
«CX»
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BRAKE POSITION |
FRONT/REAR
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FRONT/REAR
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FRONT BRAKE DISC |
150X6
G/150X4 A
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150X6
G/150X4 A
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REAR BRAKE DISC |
200X9
G/200X7 A
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200X9
G/200X7 A
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TANK CAPACITY |
10 LIT CA
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10 LIT CA
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STEERING WHEEL |
320 MTS
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320 MTS
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DISK CARRIER |
40 HQ
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40 HQ
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CROWN CARRIER |
40 HQ
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40 HQ
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FRONT HUBS |
75 HI
TECH
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75 HI
TECH
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REAR HUBS |
40X100 HQ
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40X100 HQ
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WHEELS |
DF130+DF210
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DF130+DF210
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PODS |
CIK 09-14
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CIK
09-14 |
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