The new Ultima RB5 SP
Edition is the latest in the Ultima line of vehicles, which is a further
development of the breed, and it includes all the enhancements that have
been designed by Kyosho engineers and tested over the last couple of
years by Kyosho International factory drivers and legends of the RC
world. This type of development, along with the uncompromising
manufacturing standards and the vast experience that can only be gained
from decades of high-level competition, makes the Ultima RB5 SP a strong
choice as the car to beat for the 2009 season.
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Long Rear Suspension
Arms - The RB5 SP features rear suspension arms that are 2mm
longer than the arms used on the original buggy, which are the same
arms that are standard on rear of the Lazer ZX-5 FS. The longer arms,
combined with other changes made to the rear suspension, give the SP
better and more consistent traction through the corners and better
bump handing, especially on high-bite tracks.
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Rear Suspension
Mounts and Transmission Housing - The lower rear suspension
mounts on the chassis are revised to accommodate the longer
suspension arms. The IFMAR legal maximum width is maintained by
moving the suspension mounts 2mm towards the center of the chassis.
The transmission housing is also modified to fit the new suspension
mounts.
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Low Profile Rear
Shock Tower - Reducing the height of the rear shock tower
slightly lowers the center of gravity, which improves cornering
ability, and by reducing the height of the shock tower in relation
to the wing and wing mount, it offers addition protection against
crash damage.
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Velvet Coated Shocks
- The already legendary Kyosho
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Hard Rod Ends -
The rod ends feature a new, stronger material that is more durable
and resists contamination from dirt. This means that the rod ends
stay tighter and are less likely to be damaged or separate from the
ball stud in the event of a hard crash.
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Revised Rear Hubs
- Factory drivers have determined that only one of the hinge pin
holes was ever used in the original RB5 wheel hubs, so the extra
hole was eliminated for the new SP Edition. Combined with a new,
more durable material, these hubs are not only much stronger,
they're also lighter and the new geometry produces more stable
handling characteristics
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Chrome Moly
Turnbuckle Linkage - Use of a stronger material means the new
turnbuckles can be made lighter and stronger than the original steel
turnbuckles. The new turnbuckles feature a 3mm square adjuster,
which further reduces weight.
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Orange Front Shock
Springs - The kit now includes the popular orange front shock
springs, which produce better suspension action over the bumps and
more precise steering control in the corners.
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Chiseled lines combine
with smooth, flowing sections to create a body that is not only
attractive and boldly styled, it also provides greater down-force in
combination with a larger rear wing for increased traction and
greater high-speed stability.
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Chassis -
specially formulated carbon fiber composite for the best balance of
performance and durability.
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Transmission -
Features an externally adjustable three gear design with an internal
ball differential that uses standard 3/32 inch diff balls and 1/16
inch thrust balls. Includes tight fitting molded dust cover to
protect pinion and spur gear.
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Rear Suspension -
The arms are symmetrical so a single replacement arm can be used on
either side of the car. The inside of the arms are attached to the
chassis using separate suspension mounts, which will allows anti-squat
adjustment. Vertical ball studs for both ends of the upper link
suspension geometry can be fine-tuned with shims.
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Front Suspension
- Long suspension arms connect to a narrow front mount, which can be
set for 25 or 30 degrees of hinge pin angle. Like the rear arms, a
single replacement arm can be used on either side of the car.
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Offset steering hubs
- Floating axles ride in bearings that are mounted in the hub for
more responsive suspension. The front track width is also easily
adjusted.
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12MM Hex Wheel Hubs
- 6 contact points spread the load on the wheel to prevent stripping
and the larger, flat mounting surface keeps the wheels running
straight and true.
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Steering Assembly
- Steering bellcranks are mounted on the chassis at the same angle
as the suspension arms to eliminate bump steer and produce more
accurate Ackerman geometry throughout the entire range of steering
motion.
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Captured Hinge Pins
- The hinge pins are much more secure and less likely to come loose.
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Low Profile Shock
Towers - The front shock tower is mounted as far back on the
chassis as possibly, as are the shocks, to keep the mass as low as
possible.
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Threaded Aluminum -
The shock body consists of a top cap, threaded body, and a lower
cap. The threaded adjuster features an O-ring that prevents the
preload settings from moving.
Vehicle Information
Scale:
1:10
Width:
270mm
Length:
380mm
Height:
140mm
Wheelbase
(min): 249mm
Wheelbase
(max): 270mm
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