Piaggio CM1038045 Kit 6 Variator Rollers Ø19x17 mm 7.4 g – Scooter 125 Piaggio, Vespa, Aprilia, Gilera

The Piaggio CM1038045 is the 6-roller variator kit, an original Piaggio spare part for all 125cc scooters from the group: Piaggio, Vespa, Aprilia, Gilera, and Scarabeo. It measures Ø19 x 17 mm, weighing 7.4 grams – the factory calibration. These are the rollers that, driven by centrifugal force, open the pulley and make the scooter "change gear": when they become oval-shaped, the vehicle starts sluggishly, no longer reaches top speed, vibrates, or jerks. It's the wear part that, more than any other, restores a 125cc scooter to its original brilliance, and they are always replaced all six together.

✓ Strengths

• Original Piaggio spare part – code CM1038045: weight and material are factory-calibrated, ensuring original acceleration and speed
• Complete 6-piece kit – the package covers the entire variator, no need to order more
• Measures Ø19 x 17 mm, 7.4 g – the most common size for 125cc scooters in the group
• Extensive compatibility – over sixty versions across Piaggio, Vespa, Aprilia, Gilera, and Scarabeo, from historical catalogs to 2016 models
• Available in stock, immediate shipping

Technical features

Compatibility

Recommended products

• Drive belt – changes with the rollers: it's the classic variator service
• Half-pulley guide sliders – a few euros, prevents vibrations and uneven wear
• 6-roller kit Ø19x15.5 – code CM1102035: the version for the group's 50cc scooters
• Transmission casing gasket – if the casing is opened, it should be replaced

Perfect for

It's the spare part for those who have a 125cc scooter that no longer performs as it used to: it starts slowly, no longer reaches its previous speed, the engine revs without accelerating, or it vibrates during acceleration. These are symptoms of oval-shaped rollers, the most common defect on these scooters and also the most economical to fix. It's an essential part of the transmission service: together with the belt and sliders, it restores a Beverly, an X8, or a GTS to factory performance at a very low cost.

Frequently asked questions

How many rollers are in the package?
Six, which is the complete set for one variator. There is no need to order two kits.

What are the size and weight?
Ø 19 x 17 mm, 7.4 grams each: the original calibration for Piaggio group's 125cc scooters.

How do I know they need changing?
The scooter has less acceleration, no longer reaches its previous speed, the engine revs without accelerating, or you feel vibrations. When disassembled, the rollers are found to be oval or stepped instead of cylindrical.

Do they change performance?
No: these are the original rollers of the weight specified by the manufacturer. They restore the scooter to its new condition. For a different calibration, specific aftermarket kits are needed.

Are they suitable for my 50cc scooter?
No: for 50cc scooters, the size is Ø19x15.5 mm, code CM1102035, which we sell separately.

Is it original?
Yes: original Piaggio spare part, code CM1038045.