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

Athena Item no.: AT-074700/1

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


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Data Sheet
Suitable for (32)


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.

Data Sheet

Name Athena cylinder kit (Racing), 80cc (47.6mm) with cylinder head, Minarelli vertical (12mm)
Item No. AT-074700/1
Brand Athena
EAN 8052204292127
Homologation No
Homologation No
Displacement 80cc
Stroke 43 mm
Conrod Length 85 mm
Product Line Racing
Material Aluminium
Bore 47,6 mm
Piston Pin 12 mm

Your product goes with the following manufacturers and their models:

Adly (Her Chee)

Rapido 50cc


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)

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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