
Fan-cooled 41 mm S3 (55 cc) racing kit suitable for your moped or small motorcycle with a Sachs 50/2 (DE), 50/3, or 50/4 engine.
This tuning cylinder is a clear statement for anyone who wants real performance. Meticulously handcrafted by Tivedens Motor, this cylinder delivers uncompromising torque, crisp throttle response, and a riding experience that immediately impresses. Each individual cylinder is numbered and crafted with extensive experience, technical expertise, and a genuine passion for performance. Depending on the setup used, the manufacturer claims a power output of 6.9–7.2 hp.
A racing cylinder for anyone who doesn’t want to spend time comparing options, but is looking for a part that works, delivers performance, and is simply fun. Install it, ride it, smile.
Scope of delivery as shown in Image 1.
Notes:
The racing cylinder is primarily used on the Sachs 50/3 and 50/4 engines. Thanks to the large cooling fins, it can also be used in an air-cooled configuration on the Sachs 50/2 (DE) engine.
The cylinder is equipped with a large square intake port for a 17 mm carburetor and a large M40 exhaust thread. Please take this into account when selecting your additional components. Please observe the installation direction during assembly. The piston is installed with the arrow pointing toward the exhaust on the exhaust side.
You can find the matching cylinder head, mounting hardware, exhaust systems, and threadlocker in the accessories section.
Quality product from the Swedish manufacturer Tivedens Motor AB.
| Manufacturer | Tivedens Motor AB |
| Material | Gray cast iron |
| Area of application | Tuning |
| Surface | varnished |
| Displacement | 55 ccm |
| Crankshaft stroke | 42 mm |
| Ø piston pin (B) | 12 mm |
| Nominal diameter | 41 mm |
| Ø cylinder neck | 44 mm |
| Ø Outlet outside | 40 mm |
| Ø outlet inside | 29.5 mm |
| Inlet window | 17 x 15 mm |
| Thread inlet | M5x0.8 (standard thread) |
| Number of fixing points | 4 pcs |
| Outlet type | Union nut |
| Thread outlet | MF40x1.5 (fine pitch thread) |
| Hole spacing inlet | 31 mm |
| Sachs | 50/2 50/3 50/4 |
Accessories & related products
Loctite 243 medium-strength threadlocker 10 ml
Manufacturer: Loctite · Material to be used: Aluminum · Material to be used: Metal · Material to be used: Steel · Type of application: 1K · Contents: 10 ml · Hazard warning: Causes serious eye irritation · Hazard warning: Causes skin irritation · Hazard warning: Harmful to aquatic organisms (with long-term effects) · Hazard warning: May cause allergic skin reactions · Hazard warning: May irritate the respiratory tract · Color: blue · Signal word: Attention · Hazard pictogram: GHS07 - Caution dangerous · Hazard pictogram: GHS09 - Hazardous to the aquatic environment · Adhesion: medium strength · Temperature resistance (min.): -75 - 200 °C · Gap dimension (max.): 0.01 mm · Alignment time: 600 sec · Area of application: Chemistry · Breakaway torque (according to material): 3 N/m · Breakaway torque (according to material): 12 N/m · Breakaway torque (according to material): 26 N/m
EUR 27.00
EUR 2’700.00/l
swiing® revival Stud Bolt M5x23 Inlet (Diaphragm) 10.9 | Sachs 50/2 (A3700)
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Diameter: 4.9 mm · Thread type: M5x0.8 (standard thread) · Total length: 23 mm · Nominal diameter (thread): 5 mm · Thread length: 6 mm · Thread length: 12 mm · Area of application: Standard · Pony OEM number: A3700 · Sachs OEM no.: 0640 016 101 · Sachs OEM no.: 0640 016 102
EUR 2.20
swiing® revival bolt set cylinder head galvanized | Sachs 503 / 50/2 / 50/3 / 50/4
Manufacturer: swiing® revival parts · Area of application: Standard · Material: Steel · Surface: galvanized (blue) · Number of components: 12 pcs · Color: silver · Drive: External hexagon · Total length: 34 mm · Screw head: Hexagon · Nominal diameter (thread): 6 mm · Thread length: 22 mm · Shank: Yes · Ø shaft: 5.85 mm · Shank length: 8 mm · Thread type: M6x1 (standard thread) · Width across flats: 10 mm · Strength class: 10.9
EUR 6.00
swiing® revival carburetor 17 mm Bing SSB 1/17/69
Carburetor type: SSB · Nominal diameter: 17 mm · Manufacturer: swiing® revival parts · Component group Carburetor: Carburetor complete · Material: Aluminum · Nozzle size: 76 · Width: 85 mm · Height: 100 mm · Hole spacing inlet: 31 mm · Mounting type: Flange · Total length: 132 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Area of application: Standard · Area of application: Tuning · Choke control: without choke · Camouflaged: No
EUR 156.20
swiing® ingenious exhaust nut M40x1.5 long 32 mm manifold | Sachs
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Nut type: Union nut · Ø inside: 32.5 mm · Height: 22 mm · Nominal diameter (thread): 40 mm · Ø outside: 45 mm · Thread type: MF40x1.5 (fine pitch thread)
EUR 26.70
NC-Motorparts 41 mm Cylinder Head Tuning | Sachs 50/3, 50/4 LKH
Manufacturer: NCMotorparts · Material: Aluminum · Area of application: Tuning · Camouflaged: Yes · Surface: sandblasted · Ø cylinder: 41 mm · Ø outside: 128 mm · Candle thread: long · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Decompressor: No
EUR 119.30
41 mm cylinder head CNC tuning | Sachs 50/3, 50/4 LKH
Manufacturer: Made in Europe · Material: Aluminum · Camouflaged: No · Area of application: Tuning · Height: 50 mm · Total length: 140 mm · Ø cylinder: 41 mm · Ø outside: 128 mm · Candle thread: short · Number of fixing points: 1 pcs · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Decompressor: No
EUR 412.10
Not in stock
Tivedens engine 41 mm cylinder kit S3 fan-cooled | Sachs 50/2 (DE), 50/3
Manufacturer: Tivedens Motor AB · Material: Gray cast iron · Area of application: Tuning · Surface: varnished · Ø piston pin (B): 12 mm · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Nominal diameter: 41 mm · Ø cylinder neck: 44 mm · Ø Outlet outside: 40 mm · Inlet window: 17 x 15 mm · Thread inlet: M5x0.8 (standard thread) · Ø outlet inside: 29.5 mm · Number of fixing points: 4 pcs · Outlet type: Union nut · Hole spacing inlet: 31 mm · Thread outlet: MF40x1.5 (fine pitch thread)
EUR 356.80
Tivedens engine 41 mm cylinder kit S4 | Sachs 50/2 (DE), 50/3, 50/4
Manufacturer: Barikite · Manufacturer: Tivedens Motor AB · Material: Gray cast iron · Area of application: Tuning · Ø piston pin (B): 12 mm · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Nominal diameter: 41 mm · Ø cylinder neck: 45 mm · Ø Outlet outside: 40 mm · Inlet window: 17 x 15 mm · Thread inlet: M5x0.8 (standard thread) · Ø outlet inside: 18 mm · Ø outlet inside: 30 mm · Number of fixing points: 4 pcs · Outlet type: Union nut · Hole spacing inlet: 31 mm · Thread outlet: MF36x1.5 (fine pitch thread)
EUR 393.70
Explore categories from Cylinder
Moped fans also bought
swiing® revival exhaust nut M35x2 galvanized | Sachs 50/2 (A1507)
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Nut type: Union nut · Ø inside: 30 mm · Nominal diameter (thread): 35 mm · Ø outside: 43 mm · Thread type: M35x2 (standard thread) · Pony OEM number: A1507 · Sachs OEM no.: 0242 048 101
EUR 18.30
swiing® revival nozzle set (70 - 80) Bing SSB | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: swiing® revival parts · Material: Brass · Component group Carburetor: Spraying · Quantity: 6 pcs · Carburetor type: SSB · Drive: External hexagon · Nozzle type: Main nozzle · Nozzle size: 70 · Nozzle size: 72 · Nozzle size: 74 · Nozzle size: 76 · Nozzle size: 78 · Nozzle size: 80 · Width across flats: 8 mm
EUR 46.60
swiing® ingenious resonance exhaust set Ø 28 / 70 mm | Sachs 50/2
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Ø outside: 70 mm · Color: Chrome · Ø Internal connection: 28 mm · Exhaust type: Cigar · Total length: 730 mm · Mounting type: Screwed clamp · Flame tube attachment: Union nut
EUR 184.50
swiing® revival carburetor 17 mm Bing SSB 1/17/69
Carburetor type: SSB · Nominal diameter: 17 mm · Manufacturer: swiing® revival parts · Component group Carburetor: Carburetor complete · Material: Aluminum · Nozzle size: 76 · Width: 85 mm · Height: 100 mm · Hole spacing inlet: 31 mm · Mounting type: Flange · Total length: 132 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Area of application: Standard · Area of application: Tuning · Choke control: without choke · Camouflaged: No
EUR 156.20
NC-Motorparts 41 mm Cylinder Head Tuning | Sachs 50/3, 50/4 LKH
Manufacturer: NCMotorparts · Material: Aluminum · Area of application: Tuning · Camouflaged: Yes · Surface: sandblasted · Ø cylinder: 41 mm · Ø outside: 128 mm · Candle thread: long · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Decompressor: No
EUR 119.30















