46 mm piston with a 2 mm and a 1.5 mm rectangular piston ring and internal circlip (IS) for Piaggio mopeds / mopeds with Athena cylinder kit.
The detailed dimensions of the piston according to the technical drawing can be found in the details. You can also find out about the relevant piston rings, their stems and locking types on the legend in the pictures.
| Nominal diameter | 46 mm |
| Manufacturer | Athena |
| Ø outside piston (A) | 45.93 mm |
| Compression height (C) | 26.05 mm |
| Curvature (D) | 3 mm |
| Total piston height (E) | 51.05 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | L-ring, Rectangular ring |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 2 mm, 1.5 mm |
| Ø piston pin (B) | 12 mm |
| Tolerance group | A |
| Weight piston kit | 96 g |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
Ratings
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Total length: 130 mm · Manufacturer: GPO · Material: Steel · Surface: burnished · Number of components: 7 pcs · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Area of application: (Dis)assembly tool · Width across flats: 10 mm · Width across flats: 17 mm
EUR 24.00
Athena piston 46 mm (10 mm KoBo) | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 46 mm · Manufacturer: Athena · Ø outside piston (A): 45.93 mm · Compression height (C): 26 mm · Curvature (D): 2.92 mm · Total piston height (E): 51 mm · Number of piston rings (F): 2 pcs · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Piston ring height: 2 mm · Ø piston pin (B): 10 mm · Weight piston kit: 94 g
EUR 84.30
Athena piston 46 mm (12 mm KoBo) #B | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Athena · Ø outside piston (A): 46.03 mm · Compression height (C): 26.05 mm · Curvature (D): 3 mm · Nominal diameter: 46 mm · Total piston height (E): 51 mm · Number of piston rings (F): 2 pcs · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Piston ring height: 2 mm · Ø piston pin (B): 12 mm · Tolerance group: B · Weight piston kit: 95 g
EUR 90.30
Explore categories from Piston
Moped fans also bought
Athena crankshaft "Racing" 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Athena · Cheek type: standard · Ø coupling pin / vario pin: 12 mm · Crankshaft stroke: 43 mm · Connecting rod length center-center: 85 mm · Number of gears: 1 pcs · Total length crankpin ignition side: 91.6 mm · Ø Connecting rod eye: 15 mm · Ø piston pin (B): 12 mm · Ø Bearing seat (clutch side): 15 mm · Thread type: M8x1.25 (standard thread) · Area of application: Racing · Ø Bearing seat (ignition side): 15 mm · Dimension needle bearing: 12 / 15 x 14.7 mm (axe 12) · Wide crank webs: 33 mm · Length 1st paragraph: 21.9 mm · Length 2nd paragraph: 43.2 mm · Length 3rd paragraph: 63.5 mm
EUR 189.20
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
