Exhaust Flange Bidalot RF50WR & RF70WR d.30mm

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.

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.

Exhaust flange

The exhaust flange provides a stable, sealed and separable connection between the exhaust and the engine.

Function of the exhaust flange

Depending on the engine type, the exhaust flange is attached to the cylinder by means of bolts or by press-fitting. It is then fitted into the exhaust pipe and held in position by two exhaust springs, thus maintaining a certain flexibility. To ensure tightness, there is normally an exhaust gasket. Thus, the flange provides a secure and at the same time flexible connection between the cylinder and the exhaust.

And what is an exhaust restrictor?

Many 50cc scooters and motorcycles are factory equipped with an exhaust / manifold restrictor. This restriction reduces the diameter of the exhaust flange, which restricts the performance of the exhaust. This restriction was introduced to comply with noise emission regulations and to limit the speed of 50cc scooters and motorcycles.

Many riders remove this restriction to improve the performance of their two-wheeler. However, the gain in power then leads to the loss of the homologation, so beware!

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.