CARATTERISTICHE TECNICHE / Technical data
Tab. 1137 (12/05)

SM 450 R/R

CARATTERISTICHE GENERALI

General features

DIMENSIONI, PESO, CAPACITÀ/
Dimensions, weight, capacities
INTERASSE / Wheelbase ...................................... mm/in. 1470 / 57.9
LUNGHEZZA TOTALE / Overall lenght.......... mm/in. 2175 / 85.6
LARGHEZZA MAX. / Overall width .................. mm/in. 840 / 33.1
ALTEZZA MAX. / Overall height ........................ mm/in. 1200 / 47.2
ALTEZZA SELLA / Saddle height ........................ mm/in. 905 / 35.6
ALTEZZA MIN.DA TERRA /
Min. ground clearance ........................................... mm/in. 260 / 10.2
AVANCORSA / Trail ............................................. mm/in. 73 / 2.87
PESO IN ORDINE DI MARCIA, SENZA CARBURANTE/
Kerb weight, without fuel ..................................... Kg/lb. 117,3 / 258.6
CAPACITÀ SERBATOIO CARBURANTE /
Fuel tank capacity ................................................... l 9,2
U.S. Gallons 2.4
Imp. Gallons 2
Q.TA' OLIO NEL BASAMENTO
Transmission oil ....................................................... l 1,7
U.S. Quarts 1.8
Imp. Quarts 1.5

MOTORE / Engine

CARATTERISTICHE / Characteristics
TIPO / Type
MONOCILINDRICO 4 TEMPI / Single cylinder, four stroke
ALESAGGIO / Bore ................................................. mm/in. 97 / 3.81
CORSA / Stroke ....................................................... mm/in. 60,76 / 2.39
CILINDRATA / Displacement ...............................cm3/cu.in. 449 / 27.39
RAPPORTO DI COMPRESSIONE /
Compression ratio ............................................................................................. 12,9:1
AVVIAMENTO / Starting .....................................ELETTRICO ED A PEDALE
(CON ALZAVALVOLE AUTOMATICO) / Electric and kick start (with
automatic decompressor)
SCARICO / Exhaust system ................................ SCARICO COMPLETO IN
TITANIO (SILENZIATORE E COLLETTORI) / Full titanium system
(silencer and pipes)
RAFFREDDAMENTO / Cooling ......................... A LIQUIDO / By liquid
RADIATORI ACQUA / Water radiator ...........N°/No 2

DISTRIBUZIONE / Timing system

TIPO / Type
DOPPIO ALBERO A CAMME IN TESTA, 4 VALVOLE
/ "DOHC", 4 valve
LUBRIFICAZIONE / Lubrication
TIPO / Type
A CARTER SECCO CON DUE POMPE A LOBI E FILTRO A CARTUCCIA /
Dry sump with two oil pump rotor and cartridge filter

ACCENSIONE / Ignition

TIPO / Type
ELETTRONICA A SCARICA CAPACITIVA CON ANTICIPO VARIABILE A
CONTROLLO DIGITALE / C.D.I. electronic, with adjustable advance (digital
control)
TIPO CANDELA / Spark plug type ....................... "NGK" CR 8EB
DISTANZA ELETTRODI / Spark plug gap mm/in 0,7 / 0.0275
ALIMENTAZIONE/ Fuel system
MARCA E TIPO DI CARBURATORE / Carburetor manufacturer and
type ................................................................................................... "KEIHIN" MX 41
DIAMETRO DIFFUSORE ..................................... mm/in. 41 / 1.6

FRIZIONE / Clutch

TIPO / Type
MULTIDISCO IN BAGNO D'OLIO CON COMANDO IDRAULICO /
Wet, multiplate type; hydraulic control
N° DISCHI CONDUTTORI / Driving disc no ........................................................8
N° DISCHI CONDOTTI / Driven disc no ...............................................................7
TRASMISSIONE PRIMARIA / Primary drive
PIGNONE MOTORE / Engine sprocket ......... Z/Teeth 23
CORONA FRIZIONE / Clutch gear ................. Z/Teeth 63
RAPPORTO DI TRASMISSIONE / Transmission ratio 2.739

CAMBIO VELOCITÀ/ Transmission

TIPO / Type

CON INGRANAGGI SEMPRE IN PRESA / Constant mesh gear type
N° MARCE / Speed gears no..............................................................6

RAPPORTI DI TRASMISSIONE / Internal ratios
.............................................................................1ª/1st 2,000 (28/14)
.............................................................................2ª/2nd 1,611 (29/18)
.............................................................................3ª/3rd 1,333 (24/18)
.............................................................................4ª/4th 1,086 (25/23)
............................................................................ 5ª/5th 0,920 (23/25)
.............................................................................6ª/6th 0,814 (22/27)

TRASMISSIONE SECONDARIA / Secondary drive

PIGNONE USCITA CAMBIO /
Transmission sprocket ........................................... Z/Teeth 14
CORONA POSTERIORE /
Rear wheel sprocket ............................................... Z/Teeth 44
RAPPORTO DI TRASMISSIONE /
Transmission ratio .............................................................. 3,142
CATENA DI TRASMISSIONE / Driving chain
MARCA E TIPO / Manufacturer and type"D.I.D." 520 V6/ "REGINA" 135 ORN
(5/8"x1/4")
RAPPORTI TOTALI DI TRASMISSIONE / Overall ratios
..................................................................................... 1ª/1st 17,217
..................................................................................... 2ª/2nd 13,869
..................................................................................... 3ª/3rd 11,478
..................................................................................... 4ª/4th 9,357
..................................................................................... 5ª/5th 7,920
..................................................................................... 6ª/6th 7,014
MITO EV

CARATTERISTICHE TECNICHE / Technical data
Tab. 1137 (12/05)

SM 450 R/R

MOTOTELAIO / Chassis           

TELAIO / Frame

TIPO / Type
MONOTRAVE IN ACCIAIO IN TUBI A SEZIONE CIRCOLARE;
TELAIETTO POSTERIORE IN LEGA LEGGERA / Steel single tube cradle
(round tubes); rear frame in light alloy

SOSPENSIONE ANTERIORE / Front suspension

TIPO / Type
FORCELLA TELEIDRAULICA A STELI ROVESCIATI E PERNO AVANZATO;
REGOLAZIONE FRENO IDRAULICO IN COMPRESSIONE ED
ESTENSIONE / "Upside-Down" telescopic hydraulic fork with advanced
axle; compression and rebound stroke adjustment
Ø STELI / Fork legs dia. .......................................... mm/in. 50 /1.97
CORSA SULL’ASSE GAMBE /
Travel on legs axis ................................................... mm/in. 250 / 9.84
MARCA FORCELLA /
Front fork manufacturer ............................................................... "MARZOCCHI"

SOSPENSIONE POSTERIORE / Rear suspension

TIPO / Type
PROGRESSIVA "SOFT DAMP" CON MONOAMMORTIZZATORE
IDRAULICO; REGOLAZIONE DEL PRECARICO DELLA MOLLA E DEL
FRENO IDRAULICO IN COMPRESSIONE (DOPPIA) ED ESTENSIONE /
Progressive "Soft Damp" type with single hydraulic shock absorber; spring
preload adjustment, compression and rebound adjustment (compression
stroke: double adjustment)
CORSA RUOTA / Wheel travel ......................... mm/in. 270 / 10.6
MARCA AMMORTIZZATORE /
Shock absorber manufacturer ...................................................................... "SACHS"

FRENO ANTERIORE / Front brake

TIPO / Type
"BREMBO" A DISCO FLOTTANTE CON PINZA RADIALE/ "BREMBO",
floating disc type with radial caliper
Ø DISCO / Disc dia. ................................................ mm/in 320 / 12.6

FRENO POSTERIORE / Rear brake

TIPO / Type
"BREMBO" A DISCO FLOTTANTE CON COMANDO IDRAULICO E
PINZA FLOTTANTE / "BREMBO", floating disc type with hydraulic
control and floating caliper
Ø DISCO / Disc dia. ............................................... mm/in 240 / 9.45

CERCHIO ANTERIORE / Front rim

TIPO / Type ...................... "REXFELGEN" IN LEGA LEGGERA /
"REXFELGEN", light alloy
DIMENSIONI / Size ............................................... 3,50”x17”

CERCHIO POSTERIORE / Rear rim

TIPO / Type ............................... "REXFELGEN" IN LEGA LEGGERA /
"REXFELGEN", light alloy
DIMENSIONI / Size ............................................... 5,00”x17”

PNEUMATICO ANTERIORE / Front tire

TIPO / Type ............................................ "DUNLOP” KR 106-slick
DIMENSIONI / Size ...................................................... 120/70-17"

PNEUMATICO POSTERIORE / Rear tire

TIPO / Type ............................................ "DUNLOP” KR 108-slick
DIMENSIONI / Size ....................................................... 165/55x17”

IMPIANTO ELETTRICO / Electrical equipment
BATTERIA / Battery .................................................................................. 12 V-6Ah