Molybdenum steel with double cradle split above
exhaust port. Air filter access from the side
Front Suspension
48 mm Ø Sachs USD fork, adjustable compression and
rebound, TFX technology, 11.4 in wheel travel.
Front
Wheel Travel
290 mm / 11.4
in
Rear Suspension
Sachs shock w/adjustable rebound and hi/low speed
compression
Rear
Wheel Travel
290 mm / 11.4
in
Front Brakes
Single wave Ø 260 mm floating disc, 2 piston floating caliper
Rear Brakes
Single Ø 240 mm disc, 1 piston floating caliper
Front
Wheel
1.60 x 21
Rear Wheel
2.15 x 18
Front Tyre
90/90 -21
Rear Tyre
140/80 -18
Dimensions
Length: 2180
mm / 85.8 in
Width:
807 mm / 31.8 in
Height:
1270 mm / 50.0 in
Wheelbase
1490 mm / 58.7
in
Seat Height
940 mm / 37.0
Ground
Clearance
320 mm / 12.6
in
Footrest
Height
413 mm / 16.3
in
Dry Weight
114 kg / 251 lb
Fuel Capacity
8.4 L / 2.2 US
gal
Fuel
Reserve
1.5 L / 0.4 US
gal
The RR Enduro 4T 2015 range evolves with updates to all
models of the “RR 4T Factory MY14” version and the introduction of many new
technical features. The main objectives during development were to make the bike
lighter and easier to control, and improve overall handling making it more
enjoyable and easier to ride and, above all, more effective. The engine-block
components have been made lighter and redesigned to reduce the inertial masses,
and the engine sizes have been reduced to make handling easier and minimise
weight. Compared with the larger capacity of the previous model, the absolute
power and torque figures remain unchanged thanks to a new camshaft profile and a
new exhaust system; in addition, a better distribution of the torque curve has
been obtained to get more out of the engines.
The main innovation of the RR Enduro 4T 2015 range is the
electronic injection system mounted on the 350 model. The system was developed
together with Synerject and has a 42 mm-diameter throttle body. Electronic
injection ensures precise carburation control under all usage conditions, the
air-petrol mix is optimised for any altitude thanks to a temperature and
pressure gauge. The engine offers immediate and smooth response with any driving
style. Also, thanks to the adoption of a stepper motor mounted on the throttle
body, an accurate minimum rotation speed and a reduced engine braking are always
guaranteed.
The whole range is equipped with engines
that have been completely renewed, both in terms of looks and performance. The
total weight has been reduced by 1kg on the 430 and 480 engines, compared with
the previous 450 and 498, and by as much as 1.5kg for the 350 (derived directly
from the 2014 factory model) and the 390 (which will replace the 400). The
central guards have been completely redesigned, made lighter and modified
internally to house a new oil-pump drive system, which is simpler and more
effective thanks to elimination of a drive gear. The flywheel chamber has been
redesigned in order to minimise pumping losses, and the entire shape has been
reworked thanks to the introduction of ribs that stiffen the engine block. The
covers, clutch and flywheel have also been modified with a view to reducing
weight and, at the same time, increasing the rigidity of the parts themselves.
The crankshafts have new shoulders and a new con rod,
lighter and with optimised inertia, making the bike quicker to deliver power and
more agile thanks to a reduction of the gyroscopic effect.
More specifically, the con rods are shorter and lighter,
and feature a new design. The redesign is aimed at reducing the alternating
masses and the size of the engines. The 390-430-480 cc engines, in fact, have
the entire combustion unit positioned lower down compared to the previous
models. This means that masses are more compact and closer to the centre of
gravity, significantly improving the bike’s agility.
The piston is lighter and more robust, thanks to a structure derived from
Formula 1 called “box-in-box”, which enables a reduction in vibrations and an
increase in performance. The gudgeon pin is coated with a Diamond-Like-Carbon (DLC)
treatment to minimise friction and wear.
The camshafts were developed with a new profile to boost
performance, especially at low speeds, and to provide greater linearity of
output. On the 350 and 390 version has been adopted a complete set of titanium
valves.
The cylinder features a new design for the water jacket to
improve the removal of heat and increase the efficiency of the whole cooling
system. The head has been completely redesigned both in terms of the conduits
and combustion chamber, in relation to the needs of the new engine sizes, and
externally.
The starter motor has been significantly improved and is
more powerful and lighter compared with the previous models. The balance shaft
has been completely redesigned in relation to the different balancing of the
primary masses of the crankshaft unit; the result, also here, is a significant
reduction in weight. The intake sleeve has been completely redesigned for the
new engine sizes to guarantee better fuel supply, optimal filling of the engine
and therefore a better yield, particularly at low rotation speeds.
Key features:
•Electronic Fuel Injection
•Engine from the 2014 Factory Edition
•Die-Cast Engine cases (2.2 lbs. lighter)
•Beta’s ETR(Easy-To-Ride) Engine
•New front fork compression piston to improve oil flow and reduce harshness
•New rear shock piston to reduce heat
•Handlebar pad from Race Edition
•New design seat foam that is softer
•New graphics and color scheme
Any corrections or more information on these motorcycles will be kindly appreciated.