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  • PIAGGIO SI 50 2T

piaggio si 50 2t

CYLINDER KIT

-10%
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aluminium cylinder kit ø 47 pin ø 10 big deps for piaggio and italjet moped 50 cc
CYLINDER KITS - CYLINDERS

Code 3118052

ATTENTION : BORE THE ORIGINAL CRANKCASE

-10%
Wishlist

aluminium cylinder kit ø 47 pin ø 12 big deps 4 mhr
CYLINDER KITS - CYLINDERS

Code 3118213

ATTENTION : To be installed exclusively with MP-One crankases Malossi 5717514 - 5717892

-10%
Wishlist

aluminium cylinder kit ø 47 with pin ø 12 big deps for piaggio
CYLINDER KITS - CYLINDERS

Code 3118581

ATTENTION : BORE THE ORIGINAL CRANKCASE

Wishlist

cast-iron cylinder kit ø 43 pin ø 10 cvf
CYLINDER KITS - CYLINDERS

Code 3118732

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cast-iron cylinder kit ø 43 pin ø 12 cvf
CYLINDER KITS - CYLINDERS

Code 3118733

-10%
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cast-iron cylinder kit ø 46,5 pin ø 10
CYLINDER KITS - CYLINDERS

Code 3118734

ATTENTION : BORE THE ORIGINAL CRANKCASE

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cast-iron cylinder kit ø 46,5 pinø 12 for piaggio ciao - ciao px 50 cc
CYLINDER KITS - CYLINDERS

Code 3118735

ATTENTION : BORE THE ORIGINAL CRANKCASE

-25%
Wishlist

piston 2t ø 41 with pin ø 12 and 1 semi-trapezoidal ring size 0
PISTONS

Code 34 4385

Spare part for Malossi CILINDERS : 31 7333 - 31 7343 out of production

-25%
Wishlist

piston 2t ø 41 with pin ø 12 and 1 semi-trapezoidal ring size a
PISTONS

Code 34 4385.a0

Spare part for Malossi CILINDERS : 31 7333 - 31 7343 out of production

-25%
Wishlist

piston 2t ø 41 with pin ø 12 and 1 semi-trapezoidal ring size b
PISTONS

Code 34 4385.b0

Spare part for Malossi CILINDERS : 31 7333 - 31 7343 out of production

-25%
Wishlist

piston 2t ø 41 with pin ø 12 and 1 semi-trapezoidal ring size c
PISTONS

Code 34 4385.c0

Spare part for Malossi CILINDERS : 31 7333 - 31 7343 out of production

-27%
Wishlist

piston 2t ø 41.2 with pin ø 10 and 1 semi-trapezoidal ring
PISTONS

Code 34 4384.20

Spare part for Malossi CYLINDER KIT 31 7342 : out of production

-25%
Wishlist

piston 2t ø 41.2 with pin ø 12 and 1 semi-trapezoidal ring
PISTONS

Code 34 4385.20

Spare part for Malossi CILINDERS : 31 7333 - 31 7343 out of production

-23%
Wishlist

piston 2t ø 41.4 with pin ø 10 and 2 rectangular rings
PISTONS

Code 34 5158.40

Spare part for Malossi CILINDERS : 31 4875 - 31 5488 out of production

-27%
Wishlist

piston 2t ø 41.6 with pin ø 10 and 1 semi-trapezoidal ring
PISTONS

Code 34 4384.60

Spare part for Malossi CYLINDER KIT 31 7342 : out of production

-25%
Wishlist

piston 2t ø 41.6 with pin ø 12 and 1 semi-trapezoidal ring
PISTONS

Code 34 4385.60

Spare part for Malossi CILINDERS : 31 7333 - 31 7343 out of production

-23%
Wishlist

piston 2t ø 41.8 with pin ø 10 and 2 rectangular rings
PISTONS

Code 34 5158.80

Spare part for Malossi CILINDERS : 31 4875 - 31 5488 out of production

-25%
Wishlist

piston 2t ø 41.8 with pin ø 12 and 1 semi-trapezoidal ring
PISTONS

Code 34 4385.80

Spare part for Malossi CILINDERS : 31 7333 - 31 7343 out of production

-12%
Wishlist

piston 2t ø 43.4 with pin ø 12 and 2 rectangular rings
PISTONS

Code 34 6898.40

Spare part for CYLINDERS KIT Malossi 31 4460 - 31 4617 : out of production

-4%
Wishlist

piston 2t ø 43.8 with pin ø 10 and 2 rectangular rings
PISTONS

Code 34 6751.80

Spare part for CYLINDERS KIT Malossi 31 6781 - 31 6782 : out of production

-12%
Wishlist

piston 2t ø 43.8 with pin ø 12 and 2 rectangular rings
PISTONS

Code 34 6898.80

Spare part for CYLINDERS KIT Malossi 31 4460 - 31 4617 : out of production

-27%
Wishlist

piston ø 41 pin ø 10 semi. ring 1 b
PISTONS

Code 34 4384.b0

Spare part for Malossi CYLINDER KIT 31 7342 : out of production

-4%
Wishlist

piston ø 43 pin ø 10 rect. rings 2 b
PISTONS

Code 34 6751.b0

Spare part for CYLINDERS KIT Malossi 31 6781 - 31 6782 : out of production

-4%
Wishlist

piston ø 43 pin ø 10 rect. rings 2 d
PISTONS

Code 34 6751.d0

Spare part for CYLINDERS KIT Malossi 31 6781 - 31 6782 : out of production

-4%
Wishlist

piston ø 43 pin ø 10 rect. rings 2 e
PISTONS

Code 34 6751.e0

Spare part for CYLINDERS KIT Malossi 31 6781 - 31 6782 : out of production

-12%
Wishlist

piston ø 43 pin ø 12 rect. rings 2 b
PISTONS

Code 34 6898.b0

Spare part for Malossi CYLINDER KIT 31 4617 : out of production

-12%
Wishlist

piston ø 43 pin ø 12 rect. rings 2 c
PISTONS

Code 34 6898.c0

Spare part for Malossi CYLINDER KIT 31 4617 : out of production

Wishlist

standard connection external ø 27 - inner ø 22 - m30 for exhaust system for piaggio motorcycle 50 cc
CYLINDER KITS - CYLINDERS

Code 15 3678

Spare part for Malossi CYLINDERS KIT 31 7523 - 31 7525 : out of production

CRANKSHAFT - POWER CAMME

-10%
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crankshaft with pin ø 12 and stroke 43 mm for piaggio motorcycles
CRANKSHAFTS - CONNECTING RODS

Code 5318713

For Malossi MP-ONE CRANKCASE

-10%
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rhq crankshaft with pin ø 10 and stroke 43 mm for piaggio motorcycles
CRANKSHAFTS - CONNECTING RODS

Code 5318739

For Malossi MP-ONE CRANKCASE

-10%
Wishlist

rhq crankshaft with pin ø 10 and stroke 43 mm for piaggio motorcycles
CRANKSHAFTS - CONNECTING RODS

Code 5319440

For original CRANKCASE

-10%
Wishlist

rhq crankshaft with pin ø 12 and stroke 43 mm for piaggio motorcycles
CRANKSHAFTS - CONNECTING RODS

Code 5319434

For original CRANKCASE

GEARS

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htq gears long ratio (9:1) only for vehicles with variator
GEARS

Code 67 7021

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htq gears short ratio (13:1) only for vehicles with variator
GEARS

Code 6719286

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pinwheel shaft 119.6 mm with coupling ø 23 only for vehicles with variator
GEARS

Code 6718666b

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secondary gears htq z 10/47
GEARS

Code 6719289

To turn gears from long to short ratio.

EXHAUST

-10%
Wishlist

moped racing mhr exhaust system
EXHAUST SYSTEMS - SILENCERS

Code 3219492

WARNING: this exhaust system MUST BE USED EXCLUSIVELY with Malossi MHR BIG DEPS cylinder kits art. 3118050 - 3118052 - 3118213 - 3118581 (and 3117421 - 3118048 out of production).

Wishlist

too bad exhaust system
EXHAUST SYSTEMS - SILENCERS

Code 3218786

For CYLINDERS with standard Ø 22 connection

Wishlist

too bad exhaust system only for big deps cylinders with oversized fixing ø 27
EXHAUST SYSTEMS - SILENCERS

Code 3218788

CARBURETOR KIT

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automatic fuel compensator macsi
REED VALVES - PETALS

Code 27 8785

Wishlist

black pvc fuel tube with internal ø 5 and external ø 9 mm - length 1 m
GAS / STARTER CABLES - FUEL TUBES - BRAKE HOSE

Code 22 1231

Wishlist

black pvc fuel tube with internal ø 7 and external ø 12 mm - length 1 m
GAS / STARTER CABLES - FUEL TUBES - BRAKE HOSE

Code 22 1232

-10%
Wishlist

carburettor kit phbg 19 bd for malossi mp-one crankcase
CARBURETTOR (KITS)

Code 1610989

-10%
Wishlist

carburettor kit phbg 21 bd for malossi mp-one crankcase
CARBURETTOR (KITS)

Code 1618194

Modifications to the frame are necessary for the assembly

Wishlist

carburettor kit sha 13 for piaggio boss - grillo - si 50 cc
CARBURETTOR (KITS)

Code 1610869

Wishlist

intake manifold kit ø 21 for piaggio motorcycles 50
SETS

Code 2018473

Modifications to the frame are necessary for the assembly

Wishlist

pvc fuel tube ø 5x9 mm - length 1 m
GAS / STARTER CABLES - FUEL TUBES - BRAKE HOSE

Code 2216041b

Wishlist

pvc fuel tube ø 5x9 mm - length 10 m
GAS / STARTER CABLES - FUEL TUBES - BRAKE HOSE

Code 2216718b

Wishlist

pvc fuel tube ø 6x9 mm - length 1 m
GAS / STARTER CABLES - FUEL TUBES - BRAKE HOSE

Code 2216042b

Wishlist

pvc fuel tube ø 6x9 mm - length 10 m
GAS / STARTER CABLES - FUEL TUBES - BRAKE HOSE

Code 2216730b

Wishlist

pvc fuel tube ø 7x10 mm - length 1 m
GAS / STARTER CABLES - FUEL TUBES - BRAKE HOSE

Code 2216043b

-4%
Wishlist

pvc fuel tube ø 7x10 mm - length 10 m
GAS / STARTER CABLES - FUEL TUBES - BRAKE HOSE

Code 2216784b

TRANSMISSION SET

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clutch shoes for automatic motorcycles with variator and clutch bell ø 93
CLUTCHES

Code 5218765

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clutch shoes for automatic motorcycles without variator
CLUTCHES

Code 52 7005

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clutch spring set - only for vehicles without variator
SPRINGS

Code 29 7306

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clutch spring set (only for vehicles with variator)
SPRINGS

Code 29 7307

-10%
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complete drive unit over range
TORQUE DRIVERS - TRANSMISSION SETS - HALF-PULLEYS

Code 6119262

To be combined EXCLUSIVELY with the belt 6118940

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driven pulley ø 65
TORQUE DRIVERS - TRANSMISSION SETS - HALF-PULLEYS

Code 61 3548b

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driven pulley ø 70
TORQUE DRIVERS - TRANSMISSION SETS - HALF-PULLEYS

Code 61 3538b

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driven pulley ø 80
TORQUE DRIVERS - TRANSMISSION SETS - HALF-PULLEYS

Code 61 7280b

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kit fly clutch
CLUTCHES

Code 5218223

Wishlist

mhr spring set for fly clutch and delta clutches
SPRINGS

Code 29 8747

Wishlist

multivar mhr variator for complete over range transmission unit
VARIATORS

Code 5118535

ONLY for OVER RANGE

Wishlist

multivar variator for piaggio motorcycles
VARIATORS

Code 51 3863

Wishlist

rear pulley system kit
TORQUE DRIVERS - TRANSMISSION SETS - HALF-PULLEYS

Code 6119030

ONLY for OVER RANGE

Wishlist

red variator adjuster spring with external ø 45x77 mm - ø wire 4 mm - k 9.6
SPRINGS

Code 29 6955.r0

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

Wishlist

sport spring set for fly clutch and delta clutches
SPRINGS

Code 29 8746

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torque driver
TORQUE DRIVERS - TRANSMISSION SETS - HALF-PULLEYS

Code 6118221b

Adaptable even to the original Piaggio system.

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torsion controller variator spring guide for piaggio - honda - kymco - peugeot - sym engines 50 cc
FIXED COVERS - COVERS - TORSION CONTROLLER

Code 2512828

ONLY FOR OVER RANGE

Wishlist

variator shoes set
CLUTCHES

Code 5218890

for vehicles WITH VARIATORS

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wing clutch bell internal ø 93 mm and external ø 104 mm and weight 560 grams
CLUTCH BELLS

Code 7718152b

for vehicles WITH VARIATORS

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x k belt for variator piaggio boxer - boss - si 50 cc with dimensions13x6,5x1134 mm - angle 30°
TOOTHED BELTS

Code 6117006

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x special belt 15.5x8.5x1163 mm - angle 30°
TOOTHED BELTS

Code 6118940

ONLY for OVER RANGE

Wishlist

x special belt for variator for piaggio boss - si 50 cc (dimensions 13x6.5x1143 mm - angle 34°)
TOOTHED BELTS

Code 61 7314

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yellow variator adjuster spring (external ø 45x77 mm - ø wire 3.9 mm - k 8.4)
SPRINGS

Code 29 7009.y0

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

IGNITIONS - CONTROLLERS

Wishlist

m17x1 extractor for power ignition flywheel
EXTRACTORS FOR IGNITIONS - CONTROLLERS

Code 6019925b

-10%
Wishlist

power ignition only for piaggio motorcycles originally fitting an electronic ignition
IGNITIONS - CONTROLLERS

Code 5517192

ATTENTION : Only for versions originally fitting an electronic ignition

Wishlist

spark plug cable kit and resistor spark plug cap
IGNITIONS - CONTROLLERS

Code 5519221

Wishlist

spark plug cable with ø 7 mm and length 50 cm
IGNITIONS - CONTROLLERS

Code 2219144b

FILTERS

Wishlist

fuel filter ø 6
FUEL FILTERS - OIL FILTERS

Code 03 1380b

Wishlist

fuel filter ø 8
FUEL FILTERS - OIL FILTERS

Code 03 1381b

Wishlist

red filter e12 ø 32 for phbg carburettors
AIR FILTERS

Code 04 1418

Wishlist

red filter e17 ø 32 for phva - phbn - phbg carburettors
AIR FILTERS

Code 0413537

Modifications to the frame are necessary for the assembly

Wishlist

red filter e9 air filter ø 51 for sha 12/10 - 12/12 - 13/13 carburettors
AIR FILTERS

Code 04 3687

BRAKE

Wishlist

front brake power brake shoes for brake drum ø 104 and width 20
BRAKES

Code 6218191

Front - for brake drum Ø 104 and width 20 mm

Wishlist

rear brake power brake shoe width 16
BRAKES

Code 6218165

Rear

FRAME PARTS

ENGINE CRANKCASE

-10%
Wishlist

gear box for rear hub
COVERS CRANKCASE

Code 2519075

-10%
Wishlist

mp-one crankcase electronic coil
CRANKCASES

Code 5717514

-10%
Wishlist

mp-one crankcase magneto points coil
CRANKCASES

Code 5717892

Wishlist

shim set
COVERS CRANKCASE

Code 1919662

ENGINE ACCESSORIES

Wishlist

2 roller bearings with balls ø 15x35x11 (c3 clearance) for crankshafts
BEARINGS

Code 6616872e

Wishlist

2 roller bearings with balls ø 15x35x11 with standard clearance for crankshafts
BEARINGS

Code 66 4678e

Wishlist

m10 pull-start dial for piaggio moped
DEVICES

Code 1719906b

If you mount Malossi shafts to be combined with pull-start kit

Wishlist

oil-seal kit
OIL SEALS - DUST SEALS

Code 6619664

Wishlist

pull-start kit for piaggio moped
DEVICES

Code 5019908

Wishlist

rapid sense system rpm temp hour meter
DEVICES

Code 5817540b

Wishlist

roller bearing kit
DRAWN CUP NEEDLE ROLLER BEARINGS

Code 6619663

Wishlist

tc fkm oil-seal ø 15x24x5 mm for crankshaft - flywheel side - for piaggio motorcycles
OIL SEALS - DUST SEALS

Code 6617382b

INTAKE MANIFOLD KITS

Wishlist

intake manifold ø 19 rigid mhr
INTAKE MANIFOLDS

Code 0218466

Wishlist

intake manifold kit ø 21 for piaggio motorcycles 50
SETS

Code 2018473

Modifications to the frame are necessary for the assembly

DELL'ORTO AND ACCESSORIES

Wishlist

1682 carburettor sha 14 14l
DELLORTO : CARBURETTORS - FILTERS - PUMPS

Code a01682

Wishlist

1800 carburettor sha 12 12
DELLORTO : CARBURETTORS - FILTERS - PUMPS

Code a01800

for vehicles PRODUCED 1978

Wishlist

1821 carburettor sha 12 10
DELLORTO : CARBURETTORS - FILTERS - PUMPS

Code a01821

Wishlist

1851 carburettor sha 13 13
DELLORTO : CARBURETTORS - FILTERS - PUMPS

Code a01851

OIL

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7.1 racing gear oil full synt (sae 75w - 90) 0.25l
GEAR OIL

Code 7613471b

Wishlist

7.1 sport gear oil (sae 80w - 90) 0.25l
GEAR OIL

Code 7613469b

VALVES AND PETAL SETS

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automatic fuel compensator macsi
REED VALVES - PETALS

Code 27 8785

Faq

  • How can the performance of the Piaggio SI be improved?

    As a first step, we recommend the installation of the thermal assembly diameter 43, pinot 10 or plug 12 , depending on the crankshaft fitted. They can then be combined with the 1610869 carburettor and too bad muffler. Finally, the appropriate transmission can be fitted (if the SI is pulley or variator).

  • Which oil do you recommend for my moped with big deps 4p?

    We recommend our racing oil 76 8230B

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