Description
Cylinder kit DR Evolution 177cc Vespa PX 125 - 150
DR Evolution Minachrom cast iron cylinder 177cc - robust, high-torque tuning cylinder for Vespa PX / Cosa / Sprint 125 - 150 and LML Star 125 - 150. Designed for reliable performance, it comes from the same workshop as the Top Performances Black Trophy kits and delivers impressive power output at an affordable price.
FYI: Minachrome is DR's proprietary name for its specially hardened and refined cast iron mixture. These cylinders are built for exceptional durability, making them a top choice for daily riders looking for a balance of performance and longevity.
DR Evolution cylinder design
The cylinder has 7 transfer ports and comes with a 2-ring piston. Thanks to optimized port timing, enlarged transfer ports and a large exhaust port supported by boost ports, it offers excellent revving and plenty of power. Naturally, the drastic increase in displacement to 177cc is reflected in a nice increase in performance.
The high-quality 2-ring piston with special silicon content is fitted with chrome-plated 2mm heavy-duty piston rings. The slightly domed piston crown increases the compression ratio, while side openings on the rear skirt improve the intake and lubrication of the engine.
We recommend the use of a sports exhaust. The carburetor settings must be adjusted or a larger carburetor must be used.
DR recommends the use of an NGK B9HS spark plug.
Contents DR cast iron sports cylinder
- 177cc cast iron cylinder
- Bore: 63 mm
- Stroke: 57 mm
- 2-ring piston, 2mm rings
- Aluminum HC cylinder head
- Compression: 1:8.5
- Gasket set included
How to Install a cylinder on a scooter, motorcycle or moped
The cylinder or cylinder kit is the heart of the engine on scooters, motorcycles and mopeds. It consists of a cylinder, a piston with piston ring(s), a cylinder head and gaskets needed for installation.
The service life of a cylinder depends on whether it has been fitted correctly.
Tuning Level: Sport
We categorize our products into different performance levels Original, Sport, Racing and High End , so that our customers can choose the right parts for their setup. It is really important to combine parts that belong to the same tuning level, this is especially true for cylinders, crankshafts and exhausts.
The products listed under Sport yield better performance than Original parts. They may have technical differences, such as the use of higher quality materials, a larger displacement or a performance-enhancing design. They are suitable for everyday use and have a long service life.
