Piston set 38.955mm Tol. C 50ccm for Zündapp M Bergsteiger Automatic C GTS CS 50 type 434 441 442 517 529
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Further variants / accessories
- Item no: 248-02.703-C
- EAN: 4060861015526
- Manufacturer: Citomerx
- Manufacturer no.: 185277
Product type: | Piston set |
Dimension B (compression height): | 26.5 mm |
Dimension I (piston skirt length outlet side): | 47 mm |
Piston ring dimension: | 39 x 1.5 mm |
Tuning & Styling Part: | No |
Piston ring profile: | Rectangular ring |
Vintage part: | Yes |
Cylinder bores: | 39 mm |
Dimension C (piston height): | 50.5 mm |
Dimension J (max. needle bearing width): | 15.5 mm |
Dimension C + D (total height): | 52 mm |
Dimension G (piston skirt length inlet side): | 47 mm |
OE/OEM reference number(s): | 278-02.757, 278-02.729, 248-02.703 |
GTIN: | 4060861015526 |
Dimension A (piston diameter): | 38.955 mm |
Bolt diameter: | 12 mm |
Dimension D (curvature): | 1.5 mm |
Scope of delivery: | Piston ring, Piston clips, Piston pin, Piston |
Bolt length: | 31 mm |
Piston ring width: | 1.65 mm |
Dimension E (piston pin diameter): | 12 mm |
Tolerance size: | C (38.955mm) |
Piston ring shape: | B (groove for center locking pin) |
Color: | Silver |
Piston diameter: | 39 mm |
Engine type: | 2-stroke |
Scope of delivery: | 1x piston set |
Manufacturer number: | 185277 |
Country and region of manufacture: | Sweden |
Type of motorcycle: | Moped & Mokick |
Offer package: | Yes |
Description of the package content: | Piston + piston ring + piston pin + piston clips |
Manufacturer warranty: | 2 years |
Weight: | 0.085 kg |
Material: | Aluminum alloy |
suitable for: | 50 cc |
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.