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P166.0074/12

Polini

Cylinder Polini cast iron 70 Minarelli vertical 12mm piston pin


 Delivery from German Warehouse - Pirmdien

Available to order

193.20€ 196.40€

70cc tuning cylinder Polini for Minarelli vertical

Polini SPORT 70cc cylinder kit, vertical Minarelli AC (MBK Booster / Yamaha BW's and other 50cc scooters), the cast iron version of the aluminum cylinder from Polini. One of the most popular entry-level tuning cylinders on the market.

Performance Polini 70cc cast iron cylinder

The Sport is a high-torque, durable cast iron cylinder with 2-ring pistons for everyday use, with good pull and acceleration, especially in the lower and medium RPM range. In terms of performance, it can deliver around 8 hp with the appropriate configuration (17.5 mm carburetor and sports exhaust).

In addition to top performance, the Polini cast iron cylinder scores above all for its high robustness and durability. The cylinder can be used with the original carburetor.

Technical features Polini 70cc sport cylinder:

  • 47 mm cast iron cylinder with 5 transfer ports and simple exhaust port
  • 2-ring piston with 12 mm piston pin
  • High-compression aluminum cylinder head
  • Gasket set
  • Carbon reeds (0.35 mm)

ATTENTION: For this model with 12mm piston pin you need a crankshaft with a corresponding 12mm connecting rod.

TECH Tip:

  • 300 km run-in period (150 km with ½ throttle and 150 km with ¾ throttle).
  • If you keep the oil pump, we recommend using Stage6 oil (due to its fluidity, the pump's distribution circuit will not be clogged).

Recommended standard configuration:

    • Exhaust
    • Spark plug BR9HS
    • Small end bearing
    • Carburetor 17.5mm
    • Sport CVT
    • V-belt

Maximum configuration :

    • Exhaust
    • Small end bearing
    • Spark plug BR9HS
    • Offset woodruff key
    • 19mm carburetor
    • Reed valve
    • Air filter insert
    • Sport CVT
    • Reinforced V-belt
    • Sport clutch
Technical details
Article no.
P166.0074/12
Bore
47 mm
Brand
Polini
Conrod Length
Standard
Cylinder material
Cast Iron
Displacement
70cc
EAN
8054705122699
Homologation
No
Piston Pin
12 mm
Product type
Cylinder kit
Spark plug thread
M14 short
Stroke
Original
Tuning Level
Sport
Weight
2,11 kg
Vehicle
Adly (Her Chee)
Rapido 50cc;
Aprilia
Amico 50cc AC (1991 - 1992);Amico 50cc AC (after 1993);Amico GL 50cc AC;Amico Sport 50cc AC;SR 50cc AC (before 1994) - Minarelli vertical;
Italjet
Bazooka;Pista 2 50cc AC;Pista 50cc AC;Scoop 50cc;Yankee 50cc;
MBK
Booster 1992 - 1999;Booster after 2004;Booster before 2004;Booster Next Generation after 1999;Booster Next Generation before 1999;Booster One;Booster Track;Rocket;Stunt 50cc AC;Stunt 50cc AC CAT (after 2004);Stunt Naked 50cc AC;
None
None
Yamaha
BW's 50cc AC;BW's 50cc AC (after 2004);BW's Bump 50cc AC;BW's Easy 50cc 2013;BW's NG 50cc AC (after 1999);BW's NG 50cc AC (before 1999);Slider 50cc AC (before 2004);Slider 50cc AC CAT (after 2004);Spy 50cc AC;Target 50cc;Zuma 50cc AC;Zuma II 50cc AC;




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