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Athena cylinder kit (Racing), 80cc (47.6mm) with cylinder head, Minarelli vertical (12mm)

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Athena Item no.: AT-074700/1

Athena cylinder kit (Racing), 80cc (47.6mm) with cylinder head, Minarelli vertical (12mm)

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Athena 80cc Cylinder Kit “Sport Pro” (43mm stroke) for MBK Booster / Stunt (Minarelli vertical).

The kit includes:
- Nikasil-plated Aluminium Cylinder, with 5 transfer ports and “simple” trapezoid exhaust port
- One-Ring Piston, 12mm pin
- High-Compression Monobloc Cylinder Head
- Gasket Kit for mounting and adjusting squish

Being the “big brother” of the 70cc Sport pro cylinder kit, this kit has the same technical specs, but has to be used with a 43mm crankshaft (and 85mm connecting rod).

From the get go this kit will get you 80cc! Just like the 70cc, this “80cc Sport Pro” has plenty of torque at mid rpm range and, consequently, very impressive acceleration.
With a 21mm carburetor and a racing exhaust you can easily get 14/15hp on vertical Minarelli engines. It is also a cylinder ideally suited for working on due to its capacity and top quality workmanship.

Note: just like with all aluminium cylinders, you’ll have to adjust squish to ensure reliable performance and maximum power.

Additional Information
Name Athena cylinder kit (Racing), 80cc (47.6mm) with cylinder head, Minarelli vertical (12mm)
Item No. AT-074700/1
Brand Athena
Homologation No
Homologation No
Displacement 80cc
Stroke 43 mm
Conrod Length 85 mm
Product Line Racing
Material Aluminium
Engine Type 2-stroke
Cooling Type AC
Bore 47,6 mm
Piston Pin 12 mm
Number of Piston Rings 1
Cylinder Head Included
Fits to (32)

Your product goes with the following manufacturers and their models:

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

Pista 2 50cc AC, Pista 50cc AC, Scoop 50cc

Booster 50cc AC (1992 - 1999), Booster 50cc AC (after 2004), Booster Next 50cc AC (after 1999), Booster Next 50cc AC (before 1999), Booster One 50cc until 2013, Booster Rocket 50cc AC, Booster Spirit 50cc AC (before 2004), Booster Track 50cc AC, Stunt 50cc AC, Stunt 50cc AC CAT (after 2004), Stunt Naked 50cc AC

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), BW's Spy 50cc AC, Slider 50cc AC (before 2004), Slider 50cc AC CAT (after 2004), Spy 50cc , Target 50cc, Zuma 50cc AC, Zuma II 50cc AC