Stage6 Streetrace 50cc AC Cylinder Kit Minarelli Vertical

Stage6 Streetrace 50cc Minarelli Vertical Kit
We offer here a 50cc cast iron cylinder kit for scooters with a vertical Minarelli engine (Yamaha BW's / MBK Booster): the now popular Stage6 Streetrace, a reliable and powerful cylinder for everyday use.

Highlights of the Stage6 Streetrace 50 cast iron kit
Classified in the sport to racing range, inexpensive and highly reliable, the Streetrace is a benchmark. With twin-ring pistons manufactured by Vertex, it guarantees impeccable quality. This is a perfect cylinder for the road that will increase overall performance, torque, and top speed.

While it may look standard and discreet on the outside, it's a different story on the inside! With 5 optimized transfer ports and an oval exhaust port, the power is much higher than that of the stock cylinder: about 7 hp, which is 3 to 4 hp more than the original! The high-compression aluminum cylinder head contributes to cooling the entire unit.

Scope of delivery and Stage6 Streetrace specifications

• Cast iron cylinder
  
• Complete piston (2 rings, 10mm pin, and circlips)
  
• Cylinder head
  
• Gasket set

Pro tips:
As always, we recommend cleaning the engine before installing a new cylinder and getting a new spark plug as well as a new small-end bearing. You will obviously need to adjust the carburetor.

To exploit the full potential of this kit, we recommend installing a larger carburetor (17.5mm or larger), a sport variator, and a sport-range exhaust. However, the Streetrace also works very well with unrestricted original-style exhausts such as the Yasuni ECO or Tecnigas Silent Pro.