Description
With the new Pro Race 3, Metrakit set out to really improve on the older version.And they achieved that goal by improving the design of the combustion chamber with increased compression for more torque and power.Transfer port design also underwent an overhaul - 5 instead of 6, with modified port timings.The exhaust port with boost ports was not redone for this version.
The Pro Race 3 cylinder is complemented perfectly by the single-ring piston by manufacturer Vertex, with a 47.6mm diameter and anti-wear graphite coating. A cylinder gasket kit and cylinder spacers for adjusting squish clearance are included.
The Metrakit 70cc Cylinder Kit "Pro Race 3" Derbi Euro 3 (D50B0) is definitely one of the most powerful 70cc kits; we recommend adding the Pro Race 70cc crankshaft and the Pro Race 3 exhaust to get a well-balanced set-up.We also recommend a 24mm or 28mm carburetor for even more power.
Metrakit Pro Race
The Pro Race series from Metrakit consists of extremely powerful high-end parts for 50cc scooters and motorcycles, e.g. cylinders, crankshafts and exhaust systems.
The motto of this series is pretty straightforward: maximum performance. The Pro Race products offer very high maximum power with an emphasis on the upper RPM range, making them ideal for use on the race track.
To make full use of the power, we recommend using a carburetor with a large diameter, a large-volume intake system and a reinforced clutch.
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: High End racing
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.
High End Racing products are exclusively designed for racing and should only be handled by tuning pros with the appropriate technical know-how. High-end racing parts often require modifications or machining of certain elements to accommodate the often larger components (larger crank webs, larger intake, etc.). Whether you stick with 50cc or increase the displacement, high-end racing parts offer much higher performance than the original parts and are the most powerful tuning parts.
Note: To ensure the reliability of the engine, it is important that the parts are compatible and that you do regular maintenance on your two-wheeler.
Aluminium cylinders
Aluminium cylinders are more powerful than cast iron cylinders, but require more regular maintenance and must be combined with different components such as a reinforced crankshaft and a larger carburetor.
How to run in an aluminium cylinder?
Aluminium cylinders should be run in for about 200 kilometers , and you should use a fully synthetic engine oil.
Note: To ensure optimum performance and reliability, it is advisable to measure the squish clearance. Just have a look at our tutorial How to adjust squish clearance.
Spare Parts
- MotoForce
Temperature Sensor Adapter Derbi / Piaggio Euro 47,90 €In stock - Stage6
Radiator Fluid / Coolant -38°C Stage6 1L Orange10,50 €10,50 € / 1000 mlIn stockRRP11,50 €-9% Discount - Stage6
2-Stroke Oil 100% synthetic Stage6 Racing 1L19,00 €19,00 € / 1 LCurrently not in stockRRP21,00 €-10% Discount - Stage6 R/T
2-Stroke Oil 100% synthetic Stage6 R/T MK3 1 liter26,00 €26,00 € / 1 LIn stockRRP28,50 €-9% Discount