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Crankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / Aerox
Crankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / Aerox
Crankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / Aerox
Crankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / Aerox
Crankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / Aerox
Crankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / Aerox
Crankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / AeroxCrankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / AeroxCrankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / AeroxCrankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / AeroxCrankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / AeroxCrankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / Aerox
Bidalot
Article no.: BID12100716

Crankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / Aerox

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Description

Straight out of Bidalot's R&D workshops comes the latest addition to their high-end Racing Factory series: the Bidalot Crankshaft Racing Factory WR with 39.2mm standard stroke for MBK Nitro / Yamaha Aerox (Minarelli horizontal). 

This top quality crankshaft was developed for high-end racing engines (50cc, 70cc, 80cc) and can handle very high engine speeds. The connecting rod is forged, with CNC machined finishing for maximum precision. The crankpin has a 18mm diameter (sub-standard size to increase rigidity), and the crankshaft comes with a HQ silver small end bearing. 

The Bidalot racing Factory crankshaft with 39.2mm stroke and 85m connecting rod can be used with most cylinders on the market. It is a performance part and can be used in even the most powerful engines. 

  • full circle crankshaft
  • stroke 39,2mm
  • forged connecting rod 85mm
  • crankpin + big end bearing 18mm
  • small end bearing 12x17x15mm
  • Hyper Racing / High-End
Questions about the product
 
 
Manufacturer's Details
Bidalot
Z.A. de Berroueta
64122 Urrugne
France
Notes and Safety

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 change a crankshaft?

The crankshaft is one of the main components of the engine and is responsible for the smooth operation of motorcycle, scooter and moped, whether with two-stroke or four-stroke engine. The longevity of the engine depends not only on the proper condition of the crankshaft, but also on the fact that it is properly mounted.

For a correct installation of the crankshaft, we recommend our tutorial: Crankshaft disassembly and assembly.

How can I tell if my crankshaft is Damaged?

A broken crankshaft causes metallic noises, unusual vibrations, leaking oil seals and drastically reduces the performance of the two-wheeler. In any case, the vehicle must be stopped immediately to prevent the damage from getting worse.

Please note that whenever the crankshaft is changed and serviced, you'll have to install new crankshaft bearings.

tuning range high end icon

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.

    Technical details
    Crankshaft Bidalot Racing Factory WR 39,2mm stroke MBK Nitro / Aerox
    Article no.BID12100716
    Weight3,00 kg
    SeriesRacing Factory
    BrandBidalot
    Product typeCrankshaft
    Tuning levelHigh-end
    Piston pin12 mm
    Needle bearing12x17x15mm
    StrokeOriginal
    Conrod length85 mm
    Compatible vehicles for this article
    Aprilia
    Benelli
    Beta
    Italjet
    KTM
    Kreidler
    MBK
    Malaguti
    PGO
    Rieju
    Yamaha
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