Description
Stage6 streetrace 77cc AM6
Stage6 Cylinder Kit 77cc Streetrace Cast Iron Minarelli AM6, the popular cast iron tuning cylinder by Stage6. In addition to traditional scooter tuning, Stage6 is mostly know for their high-quality tuning parts for modern scooters with CVT but a while ago decided to branch out into making parts for mopeds with gearbox (Supermotard etc.). First they launched a 50cc line, now they added two kits with 77cc and 88cc, since we all know: There is no replacement for displacement!
The kit includes:
- 77cc grey cast iron cylinder, d=50mm, 5 transfer ports and simple exhaust (28mm)
- 2-ring piston, 50mm
- One-piece high-compression cylinder head, aluminium
- Gaskets (head and base) and hardware
Perfect compromise between performance and reliability
The cylinder performance is pretty impressive on all counts – take-off and acceleration are great and due to increased displacement top speed and the overall output are much improved. The cast iron cylinder is extremely reliable and durable, so it is definitely suitable for intensive use.
Another big pro of this cylinder - assembly is very simple, you won't have to bother with milling the crankcase.
Setup recommendations
And as always when it comes to tuning cylinders, you should adjust the entire setup; we recommend a 21 mm PWK carburetor, a Vforce3 reed valve, a racing exhaust like the Stage6 Streetrace low-mount, a reinforced clutch, a reinforced crankshaft with standard stroke and for all real tuning freaks maybe even an internal rotor ignition like the MVT Digital Direct.
Our tip for running in: the new cylinder should be run in for 300km, i.e. do not go to full throttle. We recommend a 3% two-stroke mixture (1:33) to ensure prolonged engine life.
Note: The cylinder looks unobtrusive and similar to the stock part. Stage6 has deliberately decided not to display the brand name on the cylinder, instead of a logo they stamped "49ccm" on it. Don't panic, it is a 77cc cylinder and may therefore be NOT STREET-LEGAL (in various countries).
Stage6 Streetrace
As the name suggests, the Streetrace series was developed for sporty street use. The Stage6 series includes cylinders and exhausts that deliver relatively high performance, but still function reliably in everyday use.
The Stage6 Streetrace series feature the optimum balance between performance and durability to offer scooter and supermoto riders a high level of riding enjoyment even in everyday use.
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: 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.
Racing products are designed for a more extreme uses and are developed primarily for racing. Whether you stay at 50cc or increase the displacement, the corresponding Racing parts produce much higher performance than the original parts in order to achieve maximum power.