Piaggio 4146115 Rear Brake Shoes – Vespa 50 Special, 90, Primavera and ET3

The Piaggio 4146115 rear brake shoes are the original spare part for the drum braking system of small-frame Vespas: 50 Special, 90, 125 Primavera, and 125 ET3. Drum size Ø 150 x 24 mm, with friction material already mounted on the metal support, ready for installation without adaptations. Product code 4146115.

✓ Strengths

• Original Piaggio spare part – same component fitted in production, not an aftermarket equivalent
• Size 150 x 24 mm – geometry identical to the original, no drum machining required
• Predictable braking – the original friction material maintains the typical modulation of the Vespa drum, without sudden biting
• Made in Italy – declared Italian production
• Known cross-reference – equivalent aftermarket Newfren GF0159, useful for comparing application

Technical characteristics

Vehicle compatibility

Recommended products

• CIF GF0024 – Pair of front brake shoes (150x25) Vespa – to complete the overhaul of the braking system on the same vehicle
• Return springs and brake cam – components subject to fatigue that should be checked during replacement

Who is it perfect for?

It's the right spare part for those who keep a small-frame Vespa on the road and don't want to compromise on the rear brake: restorers looking for the original Piaggio code, workshops working on vintage vehicles, and Vespa riders who use their vehicle every day and notice that the lever travel has increased or that the brake is squealing. If the drum is still within tolerance, replacing the shoes brings the braking back to new.

Frequently Asked Questions

Which Vespas do Piaggio 4146115 brake shoes fit?
The Piaggio 4146115 brake shoes fit the rear brake of small-frame Vespas: Vespa 50 Special, Vespa 90 and 90 SS, Vespa 125 Primavera, and Vespa 125 ET3. The size is Ø 150 x 24 mm. Before purchasing, it is advisable to measure the drum, as these Vespas have different diameters between the front and rear.

What is the difference from front brake shoes?
The front brake shoes of the same Vespas are 25 mm wide instead of 24 mm and have a different article code. They are not interchangeable: mounting the wrong size prevents the drum from closing or reduces the braking surface.

Is there a non-original equivalent?
Yes: the most common aftermarket reference for this application is Newfren GF0159. However, code 4146115 remains the original Piaggio spare part, the one indicated in the official manufacturer's catalogs.

Why is there no barcode?
Original Piaggio spare parts are not marketed with an EAN code: unique identification occurs via the article code printed on the packaging, in this case 4146115.