Cylinder Kit 50cc 38mm 12mm Kobo (3 Ports) LONG STROKE for Hercules GT K MK SB Supra KX XE Sachs 50S 501 506 50/5 – Parmakit 733641
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- Item no: 733641
- EAN: 4251048885708
- Manufacturer: Parmakit
- Manufacturer no.: 733641
More power, higher durability and authentic riding pleasure – the Parmakit cylinder kit for Sachs and Hercules engines offers a reliable upgrade for your classic bike. With its long-stroke design and three transfer ports, this 50cc kit delivers excellent torque and smoother combustion. Whether you're tuning or restoring to original condition – this cylinder kit noticeably boosts performance and responsiveness.
With a 38mm piston diameter and 12mm pin, it fits perfectly on Sachs 50S, 501, 506 and Hercules GT K MK SB Supra KX XE engines. Crafted from durable cast iron, this kit ensures long-lasting performance even under frequent use. Ideal for mechanics, restorers, and performance-oriented riders.
Product Advantages:
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Optimized airflow thanks to 3 transfer ports
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Long-stroke design delivers increased torque at low and mid-range
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Perfect plug & play fit for Sachs 50 engines
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Heat-resistant and durable materials
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Suitable for restoration and performance upgrades
Scope of Delivery:
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1x 50cc Cylinder 38mm
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1x Piston with 12mm wrist pin
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1x Piston ring(s)
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1x Pin & circlips
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1x Base gasket
Product type: | Cylinder set |
Piston pin diameter: | 12 mm |
Displacement: | 50 cc |
Tuning & Styling Part: | Yes |
Piston ring profile: | L-ring |
Vintage part: | Yes |
Piston special feature: | With two 4 mm piston window bores / chrome-plated piston ring |
Surface finish: | Matt |
Cylinder special feature: | Nikasil-coated piston track |
Inlet inside dimension: | 22 mm, round (outside 26 mm) |
ATTENTION!: | TUNING: Not permitted in the area of the StVZO! |
GTIN: | 4251048885708 |
Diffuser internal dimension: | 32 mm |
Cylinder dimensions (LxWxH): | 160 x 210 x 80 mm |
Outlet Stud distance: | 50 mm |
Scope of delivery: | Piston, Cylinder, Gasket set, Piston rings |
Outlet stud bolt thread: | M6 |
Cylinder stud distance: | 56 x 56 mm |
Number of overflows: | 3 |
Comparison number: | Parmakit 64265.00, Piston 64150.02, Gasket set 64265.03, Piston ring 21102.16 |
Cylinder stud bore: | 8 mm |
Manifold connection type: | Flange |
Color: | Grey |
Number of piston rings: | 1 |
Features: | Durable, Corrosion resistant |
Engine type: | 2-stroke |
Scope of delivery: | 1x cylinder set |
Manufacturer number: | 64265.00 |
Country and region of manufacture: | Italy |
Type of motorcycle: | Moped & Mokick |
Offer package: | Yes |
Units quantity: | 1 |
Description of the package content: | Cylinder + piston + gasket set |
Manufacturer warranty: | 2 years |
Weight: | 2.70 kg |
Material: | Aluminum |
Type: | Tuning |
suitable for: | Hercules long-stroke |
PARMAKIT Srl
Strada Antolini, 18/C
43044 Lemignano di Collecchio PR ITA
Web page https://www.parmakit.com/
Email: info@parmakit.com

PARMAKIT - The motorcycle tuning company presents itself broadly positioned: On the one hand, it sees itself as a specialized supplier to the industry and a reliable parts supplier for moped riders. On the other hand, Parmakit is of course also involved in the tuning sector and offers a range of innovative special parts: from high-quality aluminum cylinder kits to variable ignition units. The experience values for this often come directly from the race track and the Parmakit factory drivers. In the meantime, more than 5,000 products of the company from Parma are on the market. At Parmakit is self-designed and from CNC milling to Nikasil coating manufactured by the employees themselves in two production and factory halls. Convince yourself of the Parmakit quality and order today your high-quality spare parts in the ZS2Radteile Onlineshop always at the best price!