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HUSQVARNA SM 610 Supermoto - Early Release
Model
[This is the early release model
in the European version. Some pictured equipment will not be
available on North American models!]
The new Husqvarna SM 610 is the result of a specific design aimed
at offering a specialised yet very usable bike to as wide a range
of customers as possible.
It is a perfect blend of racing technology and innovative comfort-oriented
design. The new 610 is a Motard bike that can be used for everyday
applications and has all the creature comforts you would normally
find on a road bike.
There is nothing to match its looks. The model here at the Intermot
exhibition is a smoke black 610 with a headlamp grille that almost
doubles as a screen. It matches the high stubby front mudguard
that looks like those on race machines.
The rear mudguard is fitted with a new lamp and integrated LED
unit. The 12.5 litre fuel tank has a lockable filler cap that
uses the same key as for the starter, steering lock and saddle
lock. There is digital instrumentation displaying speed, mileage,
rpm and a trip meter as well as the normal warning lights (indicators,
full beam, dipped beam etc.). The handlebars and controls are
very much along the same lines as the SM 450/510 R racing version.
One of the fundamental aims behind the project was to keep the
saddle as low as possible to improve rider accessibility and
manoeuvrability. By suitably positioning the engine and auxiliary
components, Husqvarna were able to obtain the required saddle
height and wheel arrangement. The frame was stiffened and strengthened
using the traditional round tubes, by modifying the more closed
steering column area and by using a tighter fitting single tube
cradle.
The rear arm is the same as used on the 450/510 twin cam models
and has a new Sachs shock absorber featuring a 50mm piston with
compression and rebound stroke adjustment for low - and high
- speed damping. Through the use of a new shock linkage, the
rear suspension also has unique rear progression curves. At the
front is a pair of race proven Marzocchi 45 mm inverted forks
with adjustable compression and rebound damping. The Brembo brakes
feature a floating 4-caliper 320 mm front disc while rear braking
is left to a 220 mm disc.
The SM 610 R was also designed to allow for comfortably carrying
a pillion passenger. The saddle has different density padding
and anti-slip footpegs. Thanks to special clips fitted to the
rear frame and mudguard, side panniers can be fitted as an optional
extra.
A balancing counter-shaft is fitted to the 610 engine to offset
the vibration one would normally expect with a large single cylinder
unit. Lubrication is by means of twin trochoidal-type pumps.
One pump supplies oil to the head and crankshaft, while the second
pump extracts oil from the crankcase and supplies it to the gearbox.
Breathing is via a 4 valve, dual overhead cam and rocker arm
system with variable valve springs and a quieter timing chain
introduced to reduce noise.
The engine is significantly more powerful than the previous version
thanks to new forged pistons and the fitting of a Keihin MX 41
carburettor. Power output at the wheel has increased to 32 KW
(about 50 HP) at 7,000 rpm.
Other design elements that were included specifically to improve
performance include the catalysed monopipe exhaust system, the
new cooling system featuring a solenoid and thermostat and the
new air filter box.
Modifications to the new Husqvarna SM 610 Model
Engine
- Forged piston
- Keihin MX 41 carburettor
- N
ew electrics
- Max power output 32 KW at 7000 RPM
Frame
- Traditional round tube frame with tighter fitting single tube
cradle.
- New side stand
- New aluminium swinging arm
- New progressive rear suspension link
- New bodywork and fittings
- New rear LED lamp
- New filter box
- SM 450/510 R wheels and brakes
- New final drive ratios
- New catalysed monopipe exhaust
- New saddle
- New digital instrumentation
Tech Specs
 Dimensions, weight, capacities
Wheelbase ......................................
mm/in. 1500 / 59.05
Overall lenght...................................mm/in. 2200
/ 86.61
Overall width .................................. mm/in. 820 /
32.28
Overall height ................................. mm/in. 1240
/ 48.82
Saddle height .................................. mm/in. 920 /
36.2
Min. ground clearance .....................mm/in. 265 / 10.43
Trail ................................................ mm/in.
70 / 2.7
Kerb weight, without fuel .................Kg/lb. 280.3
Fuel tank capacity ............................l 12,5 / U.S.
Gallons 3.3
Transmission oil ..............................l 2,00 / U.S.
Quarts 2.11
Engine
Type.....................................Single cylinder,
four stroke
Bore ....................................mm/in. 98 / 3.85
Stroke .................................mm/in. 76,4 / 3.01
Displacement ......................cm3/cu.in. 576,28 / 35.15
Compression ratio .............11:1
Starting ..............................Electric
Cooling ............................ liquid
Water radiator ...................N°/No 2 (With electric
fan)
Timing system
Type...................."SOHC", 4 valve
Valve timing
With valve clearance mm/in. .............. 0,3 / 0.12
Intake
Open ...................................................43°
B.T.D.C.
Closes .................................................78°
A.B.D.C.
Exhaust
Open ...................................................84°
B.B.D.C.
Closes .................................................34°
A.T.D.C.
Valve clearance (cold engine)
Intake ......................................... mm/in. 0,05
/ 0.002
Exhaust .......................................mm/in. 0,05 /
0.002
Lubrication
Type..........................Forced lubrication with double
pump
Ignition
Type................................................C.D.I.
electronic, with adjustable advance
Spark plug type .............................."NGK"
C 7E / "CHAMPION" G59C
Spark plug gap ................................mm/in 0,6÷0,7
/ 0.0236÷0.0275
Fuel system
Carburetor manufacturer and type ......... "KEIHIN"
FCR 41MX
Diameter .................................................mm/in.
41 / 1.61
Clutch
Type................Wet, multiplate type; mechanic control
Driving disc no ..................8
Driven disc no ...................7
Primary drive
Engine sprocket ............... Z/Teeth 32
Clutch gear ...................... Z/Teeth 75
Transmission ratio ............2.343
Transmission
Type................................Constant mesh gear type
Speed gears no ...............6
Internal ratios
................................ 1ª/1st 2,615 (34/13)
.................................2ª/2nd 1,812 (29/16)
.................................3ª/3rd 1,350 (27/20)
.................................4ª/4th 1,091 (24/22)
.................................5ª/5th 0,916 (22/24)
.................................6ª/6th 0,769 (20/26)
Secondary drive
Transmission sprocket .............................................Z/Teeth
16
Rear wheel sprocket ................................................
Z/Teeth 45
Transmission ratio ....................................................2,813
Driving chain
Manufacturer and type ........... "D.I.D."
520 DS, 5/8"x1/4"
Overall ratios
.....................................................................................
1ª/1st 17,240
.....................................................................................
2ª/2nd 11,948
.....................................................................................
3ª/3rd 8,899
.....................................................................................
4ª/4th 7,191
.....................................................................................
5ª/5th 6,042
.....................................................................................
6ª/6th 5,071
Chassis
Frame................Steel single tube cradle with steel
round tubes: rear frame with steel square tubes
Front suspension
Type................."Upside-Down" telescopic hydraulic
fork with advanced axle; compression and rebound stroke adjustment
Fork legs dia. .......................................... mm/in.
45 /1.77
Travel on legs axis ....................................mm/in.
250 / 9.84
Front fork manufacturer ..........................."MARZOCCHI"
Rear suspension
Type............Progressive "Soft Damp" type with
single hydraulic shock absorber; spring preload adjustment, compression
and rebound adjustment (compression stroke: double adjustment)
Wheel travel ......................................... mm/in.
290 / 11.4
Shock absorber manufacturer ..............."SACHS"
Front brake
Type................................."BREMBO",
floating disc type with fixed caliper
Disc dia. ...........................mm/in 320 / 12.6
Rear brake
Type...
............................."BREMBO", fixed
disc type with floating caliper
Disc dia. ..........................mm/in 220 / 8.66
Front rim
Material...........................Light alloy
Size ................................3,50"x17"
Rear rim
Material...........................Light alloy
Size ................................4,25"x17"
Front tire
Type .............................."PIRELLI" MTR
21-DIABLO/"DUNLOP" D207-TL
Size ................................120/70-17"
Rear tire
Type ..............................."PIRELLI" MTR
22-DIABLO/"DUNLOP" D207-TL
Size .................................150/60-17"
Electrical equipment
Voltage ........................................................................12
V
Head light wattage ........................................................
35 / 35 W
Pilot light wattage..........................................................
3 W
Tail light wattage...........................................................
5 W
Stop light wattage..........................................................
21 W
Turn signals wattage.....................................................
10 W
Instruments light wattage...............................................
2 W
Warning lights wattage..................................................
1,2 / 2 W
Battery .......................................................................12
V - 12 Ah
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