Description
2Fast Crankshaft for RC-one case
2Fast Crankshaft for Malossi C-One / RC-One crankcases, 39.3mm stroke / 90mm connecting rod, for Piaggio, specially designed for 2Fast's FL70 cylinder kit which in turn was designed for the Malossi C-One / RC-One crankcases.
2Fast designed the FL series a) to use the individual components together and b) for use with the Malossi high-end cases, but the crankshaft can also be used with a standard crankcase. In this case, you'll have to make room (milling) for the large 74mm crank webs.
By using a different small end bearing (with 17mm outer diameter), you can also use cylinders with 13mm or 14mm piston pins.
Technical details 2Fast Racing crankshaft
- for Malossi crankcases
- 39.3mm stroke (original)
- 90mm connecting rod
- small end bearing: 12x17x15mm
- crank web diameter: 74mm
- including 20mm oil seal (variator side)
- weight: 1500g
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 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.
Crankshaft 2Fast for Malossi C-One / RC-One crankcase 39.3mm stroke / 90mm conrod Piaggio | |
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Article no. | TFAST070 |
Weight | 1,50 kg |
Brand | 2Fast |
Product type | Crankshaft |
Tuning level | High-end |
Piston pin | 12 mm |
Needle bearing | 12x17x15mm |
Stroke | Original |
Conrod length | 90 mm |