Description
Bidalot 50cc Racing Cylinder RF-WR AM6
We are always on the lookout for even more power and even more performance, and tuning expert Bidalot from France is definitely one of the most reliable manufacturers when it comes to high-quality, extremely powerful racing products. The Bidalot Racing RF50WR Minarelli AM6 cylinder kit is another milestone.
The Bidalot RF50WR cylinder is a powerhouse developed logically and consistently from racing, and has been successfully tested on international race tracks. The name RF-WR (WR = world record) refers to the 2018 world speed record at Lake Bonneville, USA.
Design Bidalot 50cc RFWR (Racing Factory World Record)
The Nikasil-coated aluminum cylinder has 5 transfer ports and an exhaust with boost ports / support channels. The bore is 40mm. The cylinder head has a special coating and ensures excellent cooling of the self-centering combustion chamber. The cylinder head has a special coating and ensures excellent cooling of the self-centering combustion chamber. The piston is made of an extremely heat-resistant aluminum-silicon alloy with very high mileage.
Attention: when installing this racing cylinder, the setup must be completed with suitable high-end tuning components (internal rotor ignition, 24 or 28mm carburetor, V-Force intake, reinforced clutch), and you also need the matching Bidalot crankshaft with 39.7mm stroke and 85mm connecting rod.
Otherwise it is better to install the regular Bidalot RF50WR instead of the racing version (lower compression).
Specifications Bidalot 50 RF-WR AM6
- Aluminum cylinder with Nikasil coating
- 5 transfer ports - outlet with boost ports
- Aluminum-silicon alloy piston, 40mm
- Chrome-plated piston ring, d. 40x0.8mm
- 39.7mm stroke and 85mm connecting rod
- Flange D.28x30mm - 4 screws (hole spacing: 48mm)
Bidalot Racing Factory
Bidalot has been known for 50cc tuning and racing components for several decades. The Racing Factory series (RF WR) includes Bidalot's high-end products and is the brand's most powerful series to date.
The series is available for various displacement classes. The Racing Factory products go to the absolute performance limit in all categories.
Racing Factory range
You can equip your bike completely with Bidalot Racing Factory parts and build yourself a high-end racer. Here is a list with Racing Factory parts:
- Cylinder Bidalot RF WR 50cc to 96cc
- Crankshaft Bidalot RF
- Bidalot RF internal rotor ignition
- Clutch Bidalot RF
- Exhaust Bidalot RF
- Gearbox Bidalot RF
- Spare parts Bidalot RF (gaskets, pistons, clutch plates...)
Of course, you need a bit of know-how to install the racing parts correctly and adjust them to yield maximum power.
To get the full potential out of your engine, we recommend buying a high-quality carburetor with the right diameter for the selected displacement.
Also remember to adapt the chassis to the increased engine power, e.g. with improved brakes and suspension.
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.