44.0 mm replacement piston with two 1.5 mm rectangular piston rings with internal fuse (IS) for the 44 mm racing cylinder for your Tomos S25/2, A38B and A35 moped / moped.
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.
| Manufacturer | GPO |
| Ø outside piston (A) | 43.96 mm |
| Compression height (C) | 21.9 mm |
| Curvature (D) | 4.15 mm |
| Total piston height (E) | 49.55 mm |
| Number of piston rings (F) | 2 pcs |
| Nominal diameter | 44 mm |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1.5 mm |
| Ø piston pin (B) | 12 mm |
| Tomos |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Manufacturer: GPO · Material: Steel · Surface: burnished · Width across flats: 10 mm · Width across flats: 17 mm · Number of components: 7 pcs · Total length: 130 mm · Area of application: (Dis)assembly tool
EUR 24.40
GPO 44 mm cylinder kit tuning 12 mm KoBo | Tomos A35
Manufacturer: GPO · Material: Aluminum · Surface: sandblasted · Displacement: 65 ccm · Crankshaft stroke: 43 mm · Number of fixing points: 4 pcs · Nominal diameter: 44 mm · Ø cylinder neck: 47.8 mm · Ø outlet inside: 22.8 mm · Inlet window: 35.5 x 29.5 mm · Thread inlet: M5x0.8 (standard thread) · Ø piston pin (B): 12 mm · Outlet type: slanted · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Decompressor: No · Camouflaged: No · Hole spacing inlet: 36 mm · Hole spacing inlet: 39 mm · Area of application: Tuning
EUR 110.20
Explore categories from Piston
Moped fans also bought
swiing® revival Stud Bolt, Inlet/Outlet M6x30 (Grade 10.9)
Diameter: 5.95 mm · Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Thread type: M6x1 (standard thread) · Nominal diameter (thread): 6 mm · Thread length: 12 mm · Strength class: 10.9 · Total length: 30 mm
EUR 2.20
NTN 6203 C3 Ball bearing 17/40/12
Bearing type: Deep groove ball bearing · Stock number: 6203 · Inner ring width: 12 mm · Manufacturer: NTN · Ball bearing closed: No · Bearing clearance: C3 · Bearing cage: Sheet steel cage ball-guided · Groove ring: No · Material: Steel · Ø outside: 40 mm · Ø inside: 17 mm · Width: 12 mm · Area of application: Standard
EUR 10.90
Motorex engine oil (gear oil) manual 450 ml
Manufacturer: Motorex · Viscosity (SAE): 80W · Oil type: GL4 · Contents: 450 ml · Gearbox type: Foot control · Gearbox type: Manual gearshift · Temperature resistance (min.): -30 - 220 °C · Area of application: Gearbox lubrication with clutch
EUR 13.40
EUR 29.78/l
Airsal gasket set 44 - 45 mm | Puch
Manufacturer: Airsal · Material: Aluminum · Material: Sealing carton · Material: Sealing paper · Ø cylinder: 44 mm · Ø cylinder: 45 mm · Hole spacing outlet: 42 mm · Number of components: 4 pcs · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes · Hole spacing inlet: 38 mm · Area of application: Tuning
EUR 12.10
DMP 44 mm cylinder head (higher compression) | Tomos
Manufacturer: DMP · Material: Aluminum · Surface: glass bead blasted · Ø cylinder: 44 mm · Number of fixing points: 4 pcs · Ø screw holder: 8 mm · Height: 66 mm · Candle thread: short · Width: 145 mm · Hole pattern [mm]: 44 x 44 · Total length: 145 mm · Area of application: Racing · Area of application: Tuning
EUR 73.40
Working late? Evening hours on Thursday until 20:00
