Not so nice 
Cast iron cylinder with 50 cc displacement, suitable for your Piaggio Ciao, Si, Bravo and Boxer moped / moped with 12 mm piston pin.
Mäsig-läsig! – We strive to offer you the widest range of moped spare parts. However, this product is of rather poor quality and is not recommended by us. Should you nevertheless choose this item, we can understand you, but do not grant you any warranty or exchange.
The cylinder is not cleanly finished and has occasional chips and general manufacturing defects. In contrast to the original cylinder and other replicas, the exhaust and the overflow channels are significantly smaller and therefore the power output is correspondingly low.
Note: Check the piston ring joint before installation using a reed gauge. This should be between 0.15 - 0.4 mm to prevent the piston from jamming. Please observe the installation direction when assembling. The piston is inserted with the arrow pointing towards the outlet on the exhaust side.
| Manufacturer | Olympia |
| Material | Gray cast iron |
| Surface | varnished |
| Displacement | 50 ccm |
| Crankshaft stroke | 43 mm |
| Nominal diameter | 38.4 mm |
| Ø piston pin (B) | 12 mm |
| Ø cylinder neck | 46 mm |
| Ø Outlet outside | 22.4 mm |
| Ø outlet inside | 17.6 mm |
| Number of fixing points | 3 pcs |
| Outlet type | clamped |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
Accessories & related products
Athena 38.4 mm cylinder kit without head 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 38.4 mm · Manufacturer: Athena · Camouflaged: No · Material: Aluminum · Surface: sandblasted · Area of application: Tuning · Displacement: 50 ccm · Crankshaft stroke: 43 mm · Number of fixing points: 3 pcs · Ø piston pin (B): 12 mm · Outlet type: clamped · Decompressor: Yes
EUR 183.50
DR 38.4 mm cylinder kit 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 38.4 mm · Manufacturer: DR Racing Parts · Material: Gray cast iron · Camouflaged: No · Surface: varnished · Area of application: Tuning · 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): 12 mm · Number of fixing points: 3 pcs · Outlet type: clamped · Hole pattern [mm]: 35 x 55 · Decompressor: Yes
EUR 149.00
Not in stock
Explore categories from Cylinder
Moped fans also bought
Karcoma fuel filter 24 mm plastic / paper
Manufacturer: Karcoma · Color: transparent · Color: yellow · Material: Paper · Material: Plastic · Filter type: Filter paper · demountable: No · Ø inside: 4.7 mm · Ø outside: 24 mm · Ø fuel hose connection: 6 mm · Ø fuel hose connection: 7.3 mm · Total length: 35 mm · Total length: 60 mm
EUR 15.50
Not so nice
Olympia 38.4 mm cylinder kit 10 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 38.4 mm · Manufacturer: Olympia · Material: Gray cast iron · Surface: varnished · Area of application: Tuning · Displacement: 50 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 46 mm · Ø Outlet outside: 22.4 mm · Ø outlet inside: 17.6 mm · Ø piston pin (B): 10 mm · Number of fixing points: 3 pcs · Outlet type: clamped
EUR 152.50
Mazzucchelli crankshaft "original" 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Dimension needle bearing: 12 / 15 x 14.7 mm (axe 12) · Manufacturer: Mazzucchelli · Material: Steel · Cheek type: standard · Area of application: Original · Area of application: Standard · Thread type: M8x1.25 (standard thread) · Ø coupling pin / vario pin: 12 mm · Crankshaft stroke: 43 mm · Connecting rod length center-center: 87 mm · Total length crankpin ignition side: 90 mm · Total length crankpin ignition side: 106 mm · Ø crank webs: 69.7 mm · Ø Connecting rod eye: 15 mm · Thread length: 16 mm · Bearing seat right: 15 mm · Ø piston pin (B): 12 mm · Ø Bearing seat (ignition side): 15 mm · Wide crank webs: 33 mm · Length 1st paragraph: 21 mm · Length 2nd paragraph: 44 mm · Length 3rd paragraph: 63.5 mm · Ø 1st step (on the coupling side): 15 mm · Ø 2nd shoulder (on the clutch side): 14.4 mm · Ø 3rd step (on the clutch side): 12 mm · Inlet control time: 130 ° · Control time before O.T: 77 ° · Control time according to O.T: 53 ° · Weight: 698 g · Number of gears: 1 pcs
EUR 166.20
GPO ignition cable | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: GPO · Material: Copper · Material: Rubber · Area of application: Standard · Color: black · Color: gray · Tension: 6 V · Tension: 12 V · Number of cables: 1 pcs · Cable length: 450 mm · Piaggio OEM number: 149504
EUR 11.40
Not in stock
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
