Cylinder Kit + Head 125cc 52.4mm with Valves without SLS for 4-stroke China GY6 152QMI Rex RS Baotian BT125 AGM Kymco Citomerx
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IN STOCK - Delivery time 1-3 working days
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- Item no: 107542
- EAN: 4060861231827
- Manufacturer: Citomerx
- Manufacturer no.: 107542
This Citomerx cylinder kit + head is the ideal choice if you want to give your 125cc China GY6 152QMI 4-stroke engine fresh power. With a piston diameter of 52.4 mm and pre-installed valves, the kit ensures reliable and durable engine performance. The head comes without SLS (secondary air system), making installation easier and cleaner. Perfect for Rex RS, Baotian BT125, AGM, or Kymco models. Rely on trusted Citomerx quality to get your machine back on track.
Product advantages:
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Perfect fit for many common 125cc GY6 engines
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Pre-installed valves save time and effort during installation
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Durable design for long-lasting performance
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No SLS – simplifies conversion for vehicles without secondary air system
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Excellent value for money
Scope of delivery:
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Cylinder 125cc 52.4mm
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Cylinder head (pre-installed with valves)
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Piston
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Piston rings
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Pin
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Clips
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Gasket set
Product type: | Cylinder set |
Cylinder head dimensions (LxWxH): | 140 x 140 x 60 mm |
Piston pin diameter: | 15 mm |
Displacement: | 125 ccm |
Can the original cylinder head be used?: | Yes |
Cylinder head stud bolt spacing: | 54 x 54 mm |
Tuning & Styling Part: | No |
Piston ring profile: | Rectangular ring |
Vintage part: | No |
Cylinder head stud diameter: | 9 mm |
Piston special feature: | mit Abstreifring |
Surface finish: | Matt |
Cylinder special feature: | Kettenspanner Lochabstand: 42mm / M6 |
GTIN: | 4060861231827 |
Note: | Ohne SLS |
Cylinder dimensions (LxWxH): | 130 x 130 x 90 mm |
Scope of delivery: | Kolben Set, Gasket set, Cylinder, Cylinder head |
Cylinder stud distance: | 54 x 54 mm |
Cylinder stud bore: | 9 mm |
Color: | Grey |
Spark plug thread: | M10 x 1 |
Number of piston rings: | 4 |
Features: | Corrosion resistant, Durable |
Engine type: | 4-stroke |
Scope of delivery: | 1x cylinder set |
Manufacturer number: | 107542 |
Country and region of manufacture: | China |
Type of motorcycle: | Scooter |
Offer package: | Yes |
Units quantity: | 1 |
Description of the package content: | Cylinder head cylinder set |
Manufacturer warranty: | 2 years |
Material: | Several materials |
Type: | Standard |
suitable for: | 4-stroke China GY6 152QMI |
ZS 2Radteile GmbH
Unterbibracherstr. 3
95519 Vorbach
Web page https://www.citomerx.de
Email: info@zweiradteile.net

Citomerx stands for quality, precision, and performance for motorcycles, scooters, mopeds, and quads. As a renowned manufacturer, Citomerx offers a broad range of parts and accessories designed for both DIY enthusiasts and professional workshops. With cutting-edge manufacturing technology, strict quality controls, and innovative design, Citomerx sets new standards for durability and performance.
From cylinder kits and variator weights to exhaust systems and brake components, Citomerx reliably delivers solutions that meet the highest demands. Known for precise fit and excellent value for money, Citomerx parts are the first choice for maintaining and enhancing two-wheelers.
Citomerx understands the needs of riders and offers products engineered for maximum durability and efficiency. Constantly evolving to keep pace with market trends and technological advances, Citomerx is a trusted name for those who value performance, safety, and modern design.
Choose Citomerx – for uncompromised riding pleasure and reliable technology.