Parts and accessories for Piaggio Si 50

At WD Racing you will find 41 parts and accessories that fit the Piaggio Si 50 (1978-2001): protection, plastics, exhausts, brakes, drivetrain, graphics and much more. Every product lists the models and years it fits.

Items in stock are shipped within 24 hours and we deliver worldwide. Not sure about fitment? Message us on WhatsApp at +39 377 263 5787 with your bike model and year.

Scooter (41)

All Piaggio models

  • New
    • -20%
Malossi RHQ crankshaft with pin Ø 10 and stroke 43 mm for Piaggio motorcycles
Available
Crankshafts

Malossi RHQ crankshaft with pin Ø 10 and stroke 43 mm for Piaggio motorcycles

Malossi
5318739
€244.79 €305.99
R.H.Q. CRANKSHAFTS The crankshaft is the heart of the endothermic engine. All aspects of engine performances start from the crankshaft. It is not possible to obtain good engine performance and reliability unless a top-quality crankshaft is fitted. This is why Malossi produces only the very best in crankshafts. TECHNICAL SPECIFICATIONS Half-shafts...
  • New
    • -20%
Malossi RHQ Crankshaft with pin Ø 12 and stroke 43 mm for Piaggio motorcycles
Available
Crankshafts

Malossi RHQ Crankshaft with pin Ø 12 and stroke 43 mm for Piaggio motorcycles

Malossi
5318713
€244.79 €305.99
The crankshaft is the heart of the endothermic engine. All aspects of engine performances start from the crankshaft. It is not possible to obtain good engine performance and reliability unless a top-quality crankshaft is fitted. This is why Malossi produces only the very best in crankshafts. TECHNICAL SPECIFICATIONS Half-shafts material: 18 Ni Cr Mo5....
  • New
    • -20%
Malossi RHQ crankshaft with pin Ø 10 and stroke 43 mm for Piaggio motorcycles
Available
Crankshafts

Malossi RHQ crankshaft with pin Ø 10 and stroke 43 mm for Piaggio motorcycles

Malossi
5319440
€215.19 €268.99
R.H.Q. CRANKSHAFTS The crankshaft is the heart of the endothermic engine. All aspects of engine performances start from the crankshaft. It is not possible to obtain good engine performance and reliability unless a top-quality crankshaft is fitted. This is why Malossi produces only the very best in crankshafts. TECHNICAL SPECIFICATIONS Half-shafts...
  • New
    • -20%
Malossi RHQ crankshaft with pin Ø 12 and stroke 43 mm for Piaggio motorcycles
Available
Crankshafts

Malossi RHQ crankshaft with pin Ø 12 and stroke 43 mm for Piaggio motorcycles

Malossi
5319434
€215.19 €268.99
R.H.Q. CRANKSHAFTS The crankshaft is the heart of the endothermic engine. All aspects of engine performances start from the crankshaft. It is not possible to obtain good engine performance and reliability unless a top-quality crankshaft is fitted. This is why Malossi produces only the very best in crankshafts. TECHNICAL SPECIFICATIONS Half-shafts...
  • New
    • -20%
Malossi Power ignition only for Piaggio motorcycles originally fitting an electronic ignition
Out of stock
Ignitions and ECUs

Malossi Power ignition only for Piaggio motorcycles originally fitting an electronic ignition

Malossi
5517192
€367.19 €458.99
When preparing motors, ignition usually gets secondary attention. Yet this component is of vital importance since it is the one that manages the exact moment in which to ignite the spark on the glow plug and regulates the amount of current that determines the quality of the spark in order to obtain optimal combustion. Both in prepared and original...
View
  • New
    • -20%
Malossi Aluminium cylinder KIT Ø 47 pin Ø 10 BIG DEPS for Piaggio and Italjet moped 50 cc
Available
Cylinder kits

Malossi Aluminium cylinder KIT Ø 47 pin Ø 10 BIG DEPS for Piaggio and Italjet moped 50 cc

Malossi
3118052
€332.79 €415.99
After much success with Piaggio crankcases, Malossi completes the task: Aluminium Ø47 BIG D.E.P.S. Cylinder and Head Kits are now available again! The only CIAO/SI cylinders on the market with a split exhaust port and symmetrical transfer ports!!!! Threaded type exhaust header offers two major advantages: Increased strength and the possibility for...
  • New
    • -20%
Malossi Aluminium cylinder Ø 47 pin Ø 12 BIG D.E.P.S.4 MHR for Piaggio motorcycles
Available
Cylinder kits

Malossi Aluminium cylinder Ø 47 pin Ø 12 BIG D.E.P.S.4 MHR for Piaggio motorcycles

Malossi
3118669
€283.19 €353.99
BIG DEPS 4 MHR Ø 47 Cylinder kit The cylinder draws its peculiar characteristics from the BIG DEPS range: the same aluminium alloy, barrel with nickel-chromium coating, the same redesigned central core and identical ring washing strategy. The support surface in the front part of the cylinder continues to be worked with high precision diamond tools and has...
  • New
    • -20%
Malossi BIG D.E.P.S. cylinder with Ø 47 aluminium with pin Ø 12 for Piaggio Bravo - Boss - Ciao - Ciao PX - Grillo - Si 50 cc
Out of stock
Cylinder kits

Malossi BIG D.E.P.S. cylinder with Ø 47 aluminium with pin Ø 12 for Piaggio Bravo - Boss - Ciao - Ciao PX - Grillo - Si 50 cc

Malossi
3118582
€283.19 €353.99
Made of the same high-strength aluminium alloy as our racing cylinders and nickel-chrome coating. The central core profile has been revamped around the ports to increase the heat exchange surface and improve the air cooling flow, allowing the fresh air to enter the combustion chamber at optimal temperature and pressure conditions, thus improving the...
View
  • New
    • -20%
Malossi Aluminium cylinder KIT Ø 47 with pin Ø 12 BIG DEPS for Piaggio
Available
Cylinder kits

Malossi Aluminium cylinder KIT Ø 47 with pin Ø 12 BIG DEPS for Piaggio

Malossi
3118581
€332.79 €415.99
After much success with Piaggio crankcases, Malossi completes the task: Aluminium Ø47 BIG DEPS Cylinder and Head Kits are now available again! The only CIAO/SI cylinders on the market with a split exhaust port and symmetrical transfer ports!!!! Threaded type exhaust header offers two major advantages: Increased strength and the possibility for...
  • New
    • -20%
Malossi Aluminium cylinder Ø 47 pin Ø 10 BIG D.E.P.S. for Piaggio Bravo - Boss - Ciao - Ciao PX - Grillo - Si 50 cc
Available
Cylinder kits

Malossi Aluminium cylinder Ø 47 pin Ø 10 BIG D.E.P.S. for Piaggio Bravo - Boss - Ciao - Ciao PX - Grillo - Si 50 cc

Malossi
3118053
€283.19 €353.99
After much success with Piaggio crankcases, Malossi completes the task: Aluminium Ø 47 BIG DEPS Cylinder and Head Kits are now available again! The only CIAO/SI cylinders on the market with a split exhaust port and symmetrical transfer ports!!!! Threaded type exhaust header offers two major advantages: Increased strength and the possibility for...
  • New
    • -20%
Malossi X Special Belt drive belt 13x6,5x1143 | Piaggio Boss / Si 50
Available
Drive belts

Malossi X Special Belt drive belt 13x6,5x1143 | Piaggio Boss / Si 50

Malossi
617314
€21.59 €26.99
Malossi X Special Belt drive belt for Piaggio Boss / Si 50, for touring and sport use. Made with compounds designed for optimal resistance and grip, its shape is developed to fit the automatic transmission parts perfectly. It is fully interchangeable with the original belt and offers all the quality of a Malossi product. Size: width 13 mm, thickness 6,5...
Product added to wishlist