benelli 491 sport 50 2t lc (minarelli)

IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8544

IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 7849

Crankcase MODIFICATIONS: BORING AND CHAMFERING - To be combined EXCLUSIVELY with crankshafts 53 8855 - 5315973 and exhaust system Malossi 3219559 (3216832 out of production) scooter racing MHR Ø 47,6 Big Bore.

To be assembled EXCLUSIVELY with Malossi CRANKSHAFT 53 8009

Crankcase MODIFICATIONS: BORING AND CHAMFERING - To be combined EXCLUSIVELY with crankshaft 5317827 and exhaust system Malossi 3219163 (3216827 : out of production) scooter racing MHR Ø 52 Big Bore.

for CRANKSHAFTS 53 8855 - 5315973 ( 5312809 out of product. )

IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538

IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 7036

to change CYL. KIT 31 8559 from piston-pin Ø 10 TO 12 (PLEASE CHECK the exact SELECTION of the installed  piston)

to change CYL. KIT 31 8559 from piston-pin Ø 10 TO 12 (PLEASE CHECK the exact SELECTION of the installed  piston)

to change CYL. KIT 31 8556 from piston-pin Ø 10 TO 12 (* PLEASE CHECK the exact SELECTION of the installed  piston)

to change CYL. KIT 31 8556 from piston-pin Ø 10 TO 12 (* PLEASE CHECK the exact SELECTION of the installed  piston)

To change CYL. KIT 31 7559 - 31 8501 from piston-pin Ø 10 TO 12 (* PLEASE CHECK the exact SELECTION of the installed piston)

To change CYL. KIT 31 7559 - 31 8501 from piston-pin Ø 10 TO 12 (* PLEASE CHECK the exact SELECTION of the installed piston)

To change CYLINDER KIT 31 8284 from piston-pin Ø 10 TO 12 (* please check the exact SELECTION of the installed piston)

To change CYL. KIT 31 7559 - 31 8501 from piston-pin Ø 10 TO 12 (* PLEASE CHECK the exact SELECTION of the installed piston)

To change CYLINDER KIT 31 8284 from piston-pin Ø 10 TO 12 (* please check the exact SELECTION of the installed piston)

To change CYL. KIT 31 7559 - 31 8501 from piston-pin Ø 10 TO 12 (* PLEASE CHECK the exact SELECTION of the installed piston)

To change CYLINDER KIT 31 8284 from piston-pin Ø 10 TO 12 (* please check the exact SELECTION of the installed piston)

To change CYL. KIT 31 7559 - 31 8501 from piston-pin Ø 10 TO 12 (* PLEASE CHECK the exact SELECTION of the installed piston)

To change CYLINDER KIT 31 8284 from piston-pin Ø 10 TO 12 (* please check the exact SELECTION of the installed piston)

Spare part for Malossi CRANKSHAFT 5312810 : out of production

Spare part for Malossi CRANKSHAFTS MHR TEAM 53 9857 - 5312809 - 5313275 : out of production

Piéce détachée du VILEBREQUIN Malossi réf. 5316039 : production cessée

TO COUPLE ONLY WITH cylinders Kit 3111511 - 3115390. - If you use variator 5118678 you also have to fit fixed cover + hub kit art. 2019248.

Crankcase MODIFICATIONS: BORING - TO BE COUPLED ONLY WITH cylinder kits 3115374 (3113039/.T0 out of production - AFTER FITTING SPACER 0716344) AND WITH Multivar 5112800 or 5118678 (5115823 out of production). - If you use variator 5118678 you also have to fit fixed cover + hub kit art. 2019248.

TO COUPLE ONLY WITH cylinder Kits 3111511 - 3115390

ONLY for PISTON WITH PIN Ø 12

Spare part for GEAR 67 8998 : out of production

TO COUPLE ONLY WITH cylinder Kit 3115374

TO COUPLE ONLY WITH cylinder Kits 3115142 - 3115901

for CYLINDERS Ø 47 - 47,6

TO COUPLE ONLY WITH cylinder Kit 3115883

for CYLINDERS Ø 47,6

To be combined EXCLUSIVELY with CYLINDER KIT 3115390

for ORIGINAL VALVE

Spare part for Malossi EXHAUSTS SYSTEM 3211206 - 3212799 : out of production

TO BE USED TOGETHER WITH MULTIVAR 5115823 and CRANKSHAFTS 5315973 (5313275 - 5314548 : out of production)

Can be rotated of 360°

Can be rotated of 360°

Can be rotated of 360°

for ORIGINAL VARIATOR

** Homologation Code : NOT HOMOLOGATED ** THE ABSENCE OF HOMOLOGATION DOES NOT LIMIT THE PRODUCT FITTING

ONLY for OVER RANGE MHR ALUMINUM - IF FITTED WITH CRANKSHAFTS 5315973 ( 5312810 - 5313275 - 5314548 - 5316048 out of production), USE KIT 2019248

for vehicles WITH ORIGINAL CLUTCH BELL Ø 107

for vehicles WITH ORIGINAL CLUTCH BELL Ø 105

for vehicles WITH ORIGINAL CLUTCH BELL Ø 112

ONLY for OVER RANGE

ONLY for OVER RANGE MHR ALUMINUM

for Multivar and original variator - rigidity increase compared to original spring: +40%

for vehicles WITH ORIGINAL MOBILE DRIVEN SPLIT PULLEY INTERNAL Ø 34

for vehicles WITH ORIGINAL MOBILE DRIVEN SPLIT PULLEY INTERNAL Ø 33

Spare part for Malossi MULTIVAR 2000 MHR ALUMINUM 5115823 : out of production

for Multivar and original variator - rigidity increase compared to original spring: +30%

ONLY for OVER RANGE

for Multivar and original variator - rigidity increase compared to original spring: +35%

Spare part for Malossi IGNITION 5511182 : out of production

Spare part for IGNITIONS 5514690 - 5515002 : out of production

ELECTRIC SYSTEM IS CUT OUT

ONLY FOR vehicles WITH YAMAHA FLYWHELL - WITHOUT IMMOBILIZER KEY

ONLY FOR vehicles WITH DUCATI FLYWHELL - WITHOUT IMMOBILIZER KEY

Rear - for vehicles PRODUCED 1997 --> ** HOMOLOGATED **

Front - for vehicles PRODUCED 1997 --> ** HOMOLOGATED **

Rear - for vehicles PRODUCED 1997 -->

Front - for vehicles PRODUCED 1997 -->

Rear - for vehicles PRODUCED 1997 --> ** HOMOLOGATED **

Front - for vehicles PRODUCED 1997 --> ** HOMOLOGATED **

ONLY for vehicles WITH Malossi MHR C-one/RC-one ENGINE CRANKCASE

STRENGTHENED for ROAD and RACING USE

STRENGTHENED for ROAD and RACING USE - Carbonitrided inner ring

STRENGTHENED for ROAD and RACING USE

(spare part for *1st series Malossi CRANKSHAFT 53 9864 * : out of production)

(spare part for Malossi secondary gears 67 8998 : out of production)

TO BE USE WITH MODULAR-HEAD cylinder kits

Spare part for Malossi EXHAUSTS SYSTEM 3211206 - 3212799 : out of production

TO BE USED TOGETHER WITH MULTIVAR 5115823 and CRANKSHAFTS 5315973 (5313275 - 5314548 : out of production)

Not suitable for original air box filter - ATTENTION: in order to use the MHR manifolds it is necessary to perform some small modifications to the adjacent plastic

Not suitable for original air box filter - ATTENTION: in order to use the MHR manifolds it is necessary to perform some small modifications to the adjacent plastic

Not suitable for original air box filter - ATTENTION: in order to use the MHR manifolds it is necessary to perform some small modifications to the adjacent plastic

Can be rotated of 360°

Can be rotated of 360°

Can be rotated of 360°

for ORIGINAL VALVE