38.40 mm oversize piston with an L-shaped piston ring with internal circlip and a rectangular piston ring with flank lock (FS) from DR for all Piaggio mopeds / mopeds.
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 | 38.4 mm |
| Manufacturer | DR Racing Parts |
| Ø outside piston (A) | 38.33 mm |
| Compression height (C) | 26.4 mm |
| Curvature (D) | 3.8 mm |
| Total piston height (E) | 52.3 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | L-ring, Rectangular ring |
| Piston ring impact | Internal fuse (IS), Flank safety device (FS) |
| Piston ring height | 2 mm, 1.5 mm |
| Ø piston pin (B) | 10 mm |
| Weight piston kit | 78 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
Manufacturer: GPO · Area of application: (Dis)assembly tool · Material: Steel · Surface: burnished · Number of components: 7 pcs · Total length: 130 mm · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Width across flats: 10 mm · Width across flats: 17 mm
EUR 24.00
EUR 21.60
DR 38.4 mm cylinder kit 10 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 38.4 mm · Manufacturer: DR Racing Parts · Material: Gray cast iron · Surface: varnished · Displacement: 50 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 45.6 mm · Ø Outlet outside: 22.5 mm · Ø outlet inside: 17 mm · Ø piston pin (B): 10 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Hole pattern [mm]: 35 x 55 · Decompressor: Yes · Camouflaged: No · Area of application: Tuning
EUR 156.70
Explore categories from Piston
Moped fans also bought
- 10 %
Hot 
GPO pedal cranks chrome (pair) | Puch
Manufacturer: GPO · Material: Steel · Surface: chrome-plated · Color: Chrome · Total length: 180 mm · Crank length (center-center): 156 mm · Wide intake: 28 mm · Ø Pedal wedge: 9.5 mm · Ø Pedal axle: 16 mm · Cranking (offset): 37 mm · Cranking (offset): 49 mm · Thread type: FG14.3 (9/16" 20G)
EUR 90.30
EUR 80.70
IMCA shock absorber 32 cm "Oldschool" chrome / silver
Manufacturer: IMCA · Material: Steel · Surface: chrome-plated · Surface: varnished · Color: silver · Damping type: Spring · Adjustable: No · Ø outside: 40 mm · Ø Fastening inside: 10 mm · Ø spars: 28 mm · Total length: 350 mm · Mounting type: Nuts & bolts · Hole spacing: 320 mm · Number of fixing points: 2 pcs
EUR 92.80
Continental 2.00 - 2.50 x 16" tube
Manufacturer: Continental · Tire width: 2 - 2.5 " · Tire width: 2.25 - 2.5 " · Tire width: 2.5 " · Tire width [mm]: 50.8 - 63.5 · Width: 2 " · Width: 2 1/4 " · Width: 2 1/2 " · Wheel size: 16 " · Tire height [%]: 100 · Valve type: TR6 car valve · Old designation: 20 x 2 " · Old designation: 20 x 2.25 " · Old designation: 20 x 2.5 "
EUR 17.50
swiing® revival nozzle set M5 (50 - 60) Dell'Orto SHA, PHBG
Manufacturer: swiing® revival parts · Component group Carburetor: Spraying · Material: Brass · Quantity: 11 pcs · Carburetor type: PHBG · Carburetor type: SHA · Carburetor type: SHA (Piaggio) · Nozzle type: Main nozzle · Nozzle thread: M5x0.8 (standard thread) · Nozzle size: 50 · Nozzle size: 51 · Nozzle size: 52 · Nozzle size: 53 · Nozzle size: 54 · Nozzle size: 55 · Nozzle size: 56 · Nozzle size: 57 · Nozzle size: 58 · Nozzle size: 59 · Nozzle size: 60 · Total length: 8 mm · Drive: Slot
EUR 27.60
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
