Hot 
Fan-cooled 41 mm S3 (55 cc) racing kit suitable for your moped or small motorcycle with a Sachs 50/2 (DE) or 50/3 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 it can deliver 6.9–7.3 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.
Note: 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
| Material | Gray cast iron |
| Nominal diameter | 41 mm |
| Manufacturer | Tivedens Motor AB |
| Surface | varnished |
| Displacement | 55 ccm |
| Crankshaft stroke | 42 mm |
| Ø cylinder neck | 44 mm |
| Ø Outlet outside | 40 mm |
| Ø outlet inside | 29.5 mm |
| Hole spacing inlet | 31 mm |
| Inlet window | 17 x 15 mm |
| Ø piston pin (B) | 12 mm |
| Area of application | Tuning |
| Thread inlet | M5x0.8 (standard thread) |
| Number of fixing points | 4 pcs |
| Outlet type | Union nut |
| Thread outlet | MF40x1.5 (fine pitch thread) |
| 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 · Area of application: Chemistry · Contents: 10 ml · Color: blue · 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 · 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 · Type of application: 1K · Alignment time: 600 sec · 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 26.00
EUR 2’600.00/l
swiing® revival Stud Bolt M5x23 Inlet (Diaphragm) 10.9 | Sachs 50/2 (A3700)
Manufacturer: swiing® revival parts · Diameter: 4.9 mm · Area of application: Standard · Material: Steel · Surface: galvanized (blue) · Nominal diameter (thread): 5 mm · Thread type: M5x0.8 (standard thread) · Total length: 23 mm · Thread length: 6 mm · Thread length: 12 mm · Pony OEM number: A3700 · Sachs OEM no.: 0640 016 101 · Sachs OEM no.: 0640 016 102
EUR 2.15
swiing® revival bolt set cylinder head galvanized | Sachs 503 / 50/2 / 50/3 / 50/4
Manufacturer: swiing® revival parts · Strength class: 10.9 · Area of application: Standard · Material: Steel · Surface: galvanized (blue) · Color: silver · Thread type: M6x1 (standard thread) · Nominal diameter (thread): 6 mm · Drive: External hexagon · Screw head: Hexagon · Width across flats: 10 mm · Shank: Yes · Ø shaft: 5.85 mm · Shank length: 8 mm · Total length: 34 mm · Thread length: 22 mm · Number of components: 12 pcs
EUR 5.80
Exhaust set Sidepipe Ø 32 / 60 mm chrome | Sachs 50/2
Manufacturer: Made in Portugal · Material: Steel · Ø Internal connection: 32 mm · Mounting type: Screwed clamp · Ø Flame tube outside: 32 mm · Exhaust type: Sidepipe · Ø outside: 60 mm · Total length: 600 mm · Flame tube attachment: Flange
EUR 201.60
swiing® revival carburetor 17 mm Bing SSB 1/17/69
Nominal diameter: 17 mm · Manufacturer: swiing® revival parts · Material: Aluminum · Area of application: Standard · Area of application: Tuning · Component group Carburetor: Carburetor complete · Carburetor type: SSB · Height: 100 mm · Mounting type: Flange · Hole spacing inlet: 31 mm · Ø fuel hose connection: 6 mm · Total length: 132 mm · Mixed oil connection: No · Width: 85 mm · Vacuum connection: No · Choke control: without choke · Camouflaged: No · Nozzle size: 76
EUR 150.60
swiing® ingenious 41 mm cylinder head tuning | Sachs 50/2, 50/3, 50/4
Manufacturer: swiing® ingenious parts · Area of application: Standard · Material: Aluminum · Surface: sandblasted · Ø cylinder: 41 mm · Width: 95 mm · Height: 50 mm · Ø screw holder: 19 mm · Candle thread: long · Ø outside: 98 mm · Total length: 127 mm · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Decompressor: M10x1.5
EUR 81.30
swiing® ingenious exhaust nut M40x1.5 long 32 mm manifold | Sachs
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Nut type: Union nut · Nominal diameter (thread): 40 mm · Height: 22 mm · Ø inside: 32.5 mm · Ø outside: 45 mm · Thread type: MF40x1.5 (fine pitch thread)
EUR 25.70
BAD ASS cylinder head L Ø 41-43 mm | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: BAD ASS · Area of application: Tuning · Material: Aluminum · Ø cylinder: 41 - 43 mm · Ø screw holder: 19.3 mm · Ø outside: 108 mm · Number of fixing points: 1 pcs · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Decompressor: M10x1.5
EUR 177.90
Hot
Tivedens engine 41 mm cylinder kit S3 | Sachs 50/2 (DE), 50/3, 50/4
Nominal diameter: 41 mm · Manufacturer: Tivedens Motor AB · Area of application: Tuning · Material: Gray cast iron · Surface: varnished · Displacement: 55 ccm · Crankshaft stroke: 42 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) · Hole spacing inlet: 31 mm · Ø piston pin (B): 12 mm · Outlet type: Union nut · Number of fixing points: 4 pcs · Thread outlet: MF40x1.5 (fine pitch thread)
EUR 344.00
Hot
Tivedens engine 41 mm cylinder kit S4 | Sachs 50/2 (DE), 50/3, 50/4
Nominal diameter: 41 mm · Manufacturer: Barikite · Manufacturer: Tivedens Motor AB · Material: Gray cast iron · Area of application: Tuning · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Ø cylinder neck: 45 mm · Ø Outlet outside: 40 mm · Ø outlet inside: 18 mm · Ø outlet inside: 30 mm · Inlet window: 17 x 15 mm · Thread inlet: M5x0.8 (standard thread) · Hole spacing inlet: 31 mm · Ø piston pin (B): 12 mm · Outlet type: Union nut · Thread outlet: MF36x1.5 (fine pitch thread) · Number of fixing points: 4 pcs
EUR 379.60
Explore categories from Cylinder
Moped fans also bought
NSK E15 shoulder ball bearing 15/35/8 (A1149)
Bearing type: Shoulder bearing · Bearing cage: Brass cage ball-guided · Stock number: E15 · Inner ring width: 8 mm · Manufacturer: NSK · Ball bearing closed: No · Bearing clearance: CN (standard) · Groove ring: No · Area of application: Standard · Material: Brass · Material: Steel · Width: 8 mm · Ø inside: 15 mm · Ø outside: 35 mm · Pony OEM number: A1149 · Sachs OEM no.: 0232 017 006
EUR 29.50
swiing® revival exhaust nut M40x1.5 for 32 mm pipe, galvanized | Sachs
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Nut type: Union nut · Thread type: MF40x1.5 (fine pitch thread) · Nominal diameter (thread): 40 mm · Height: 19 mm · Ø inside: 33.5 mm · Ø outside: 46 mm
EUR 16.50
swiing® revival bolt set cylinder head galvanized | Sachs 503 / 50/2 / 50/3 / 50/4
Manufacturer: swiing® revival parts · Strength class: 10.9 · Area of application: Standard · Material: Steel · Surface: galvanized (blue) · Color: silver · Thread type: M6x1 (standard thread) · Nominal diameter (thread): 6 mm · Drive: External hexagon · Screw head: Hexagon · Width across flats: 10 mm · Shank: Yes · Ø shaft: 5.85 mm · Shank length: 8 mm · Total length: 34 mm · Thread length: 22 mm · Number of components: 12 pcs
EUR 5.80
swiing® revival engine seal | Sachs 502, 50/2, 50/3, 50/4 (A1828)
Manufacturer: swiing® revival parts · Material: Sealing paper · Color: sand-colored · Thickness: 0.4 mm · Ø inside: 86 mm · Total length: 250 mm · Width: 170 mm · Number of components: 1 pcs · Number of fixing points: 16 pcs · Pony OEM number: A1828 · Sachs OEM no.: 0250 088 100
EUR 7.00
swiing® revival carburetor 17 mm Bing SSB 1/17/69
Nominal diameter: 17 mm · Manufacturer: swiing® revival parts · Material: Aluminum · Area of application: Standard · Area of application: Tuning · Component group Carburetor: Carburetor complete · Carburetor type: SSB · Height: 100 mm · Mounting type: Flange · Hole spacing inlet: 31 mm · Ø fuel hose connection: 6 mm · Total length: 132 mm · Mixed oil connection: No · Width: 85 mm · Vacuum connection: No · Choke control: without choke · Camouflaged: No · Nozzle size: 76
EUR 150.60
swiing® ingenious gasket cylinder head 41 mm | Sachs 503, 502, 50/2, 50/3, 50/4
Nominal diameter: 41 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Place of use: Cylinder head · Area of application: Standard · Ø cylinder: 41 mm · Thickness: 0.3 mm · Ø inside: 41.7 mm · Hole pattern [mm]: 37 x 37
EUR 5.80
swiing® ingenious 41 mm cylinder head tuning | Sachs 50/2, 50/3, 50/4
Manufacturer: swiing® ingenious parts · Area of application: Standard · Material: Aluminum · Surface: sandblasted · Ø cylinder: 41 mm · Width: 95 mm · Height: 50 mm · Ø screw holder: 19 mm · Candle thread: long · Ø outside: 98 mm · Total length: 127 mm · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Decompressor: M10x1.5
EUR 81.30
Working late? Evening hours on Thursday until 20:00
