Tuning Kit cylinder + exhaust Stage6 R/T FL70
incl. tax, plus shipping
Description
Stage6 R/T FL 70 Engine Pack - Cylinder and Exhaust
Designed for riders heading to the track with Stage6 R/T: the Stage6 R/T FL70 tuning kit for FL / flanged mount crankcases. The cylinder and exhaust are matched to each other and deliver the base for maximum performance.
FL70 engine kit contents:
The Stage6 R/T FL70 engine pack includes the following parts:
- Stage6 R/T FL70 cylinder kit
- Stage6 R/T FL70 exhaust
Stage6 R/T FL70 Cylinder Kit
The result of six years of development, the Stage6 R/T FL 70cc takes one of their flagship models to the next level, combining peak power, a wide usable powerband, and race-proven reliability.
Featuring a 47.6 mm bore, standard stroke (39.3 mm), and a 90 mm connecting rod, it produces roughly 29 hp at 14,500 rpm with the right setup. The design simplifies CVT tuning and delivers consistent power output, even during long sessions or under extreme heat.
Installation requires no extensive preparation or port matching on the transfer ports. Experienced tuners still have plenty of material available for custom modifications to extract extra power.
Stage6 R/T FL70 Exhaust
The S6 R/T FL70 exhaust is specifically matched to the Stage6 R/T FL 70 cylinder, allowing both components to work in harmony so the cylinder can reach its full potential. An operating range between 14,000 and 15,500 rpm ensures smooth power delivery and optimum performance. Combined with a properly tuned setup, the FL70 kit delivers peak performance.
The exhaust is hand-welded from thin steel sheet metal, features an unvarnished racing finish, and comes with a carbon silencer.
FL70 Engine Kit - 29 hp for Maximum Performance
To get the full potential out of this FL 70 engine setup, matching components are recommended, including an Stage6 R/T internal rotor ignition, Stage6 R/T Oversize CVT kit, Stage6 Torque Control clutch, PWK 28 type carburetor, Stage6 by V-Force reed valve, and long transmission gears, alongside the other components required to run a high-end racing engine.
Important: Installation requires an FL type crankcase, such as the Malossi C-One or RC-One, 2Fast Passion, Polini P.R.E., or TPR Factory.
Paired with a matching setup, this package provides a broad powerband, easier tuning, and outputs around 29 hp.
Stage6 R/T FL70 Pack at a glance:
- 70cc aluminum cylinder with 47.6 mm bore and Nikasil coating
- 5 transfer ports and bridged exhaust port
- 47.6 mm piston with 12 mm wrist pin and 0.8 mm piston ring
- Two-piece cylinder head with orange anodized cap
- Designed for standard stroke and 90 mm connecting rod
- CNC-machined flange with three O-rings and 4-hole mounting
- Exhaust with untreated, unvarnished finish
- Includes carbon silencer
- Fits FL-type crankcases
- Not street-legal - For racing only!
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.
