Cylinder kit Athena Racing Spezial 70cc with 12mm flat racing 47,6mm piston and flat piston for Piaggio Derbi Gilera Vespa aircoold models

Do you want the perfect power?
This is the racing cylinder with the right power and torque!
The largest and most powerful kit in this class on 70cc!

In contrast to the sport, this racing version has a large two-part exhaust duct with a central bar, longer, sharp valve times and a much higher compression!
In any case, we recommend using at least a 17.5 mm carburetor, better still a 19 mm carburettor.

The scope of delivery includes a set of seals with differently strong base seals to compensate for the timing and the squishy gap.

Huge inlet and outlet channels, as well as 4 overflow channels!
Tuning cylinders with the right power and torque - huge inlet and outlet ports and 4 additional performance overflow channels!
- Improved materials compared to the original
- improved service life of the cylinder through galvanic coating (Nikasil raceway)
Cylinder has the highest quality Nikasil coating for higher performance with maximum quality and minimal friction loss.
The Nikasil running track also guarantees reliable lubrication at high speeds!
- Improved runnability and lubrication of the piston through the special grinding and scoffing process of the Nikasil running surface. This makes it much more resilient and steadfast!
- Production on the most modern machining centers in Europe
- Coated Asso flat piston specially matched to the cylinder, which has the maximum load capacity and wear resistance! This makes it extremely reliable!
- Exactly fitting, high-quality special sealing kit included in the scope of delivery
- Special carbon membrane kit for even more performance
- High quality complete kit made in Europe!
Optimally coordinated increase in torque across the entire speed range for more power on the mountain.
In addition, the performance remains more constant!
Scope of delivery:
Cylinder kit complete with racing cylinder head
Extremely coated Asso flat racing piston!
Racing carbon membrane kit
Special seal set!
all necessary parts!
Our special Big Bore racing kit brings top performance and absolutely the best results!
Bore: 47.6mm
Piston pin diameter: 12mm
Displacement: 70cc
Complete kit ready for assembly.
Nothing else is needed!
All parts are included!
Suitable for the following models, among others:

APRILIA SCARABEO 2T 50 2010/2014
APRILIA SPORT CITY ONE 2T 50 2008/2010
DERBI ATLANTIS 02 BULLET 50 2003/2005
DERBI ATLANTIS 02 CITY 50 2003/2006
DERBI ATLANTIS 02 TWO CHIC 50 2005
DERBI ATLANTIS EU2 2T 50 2007/2009
DERBI ATLANTIS O2 50 2002
DERBI BOULEVARD EU2 2T 50 2009/2012
DERBI VARIANT SPORT 2T 50 2012
GILERA EASY MOVING 50 1995/1996
GILERA ICE 50 2001/2005
GILERA STALKER 50 1997/2011
GILERA STALKER NAKED 50 2008
GILERA STORM 50 1994/1995
GILERA TYPHOON 50 1994/1997
GILERA TYPHOON X / X KAT 50 1998/1999
GILERA TYPHOON XR 50 2000
ITALJET JET SET 50 2001/2003
ITALJET TORPEDO NEW (2T 50 2001/2003
PIAGGIO DIESIS 50 2001
PIAGGIO FLY 2T 50 2005/2011
PIAGGIO FREE 50 1992/1994
PIAGGIO FREE DELIVERY 50 2000/2001
PIAGGIO FREE FL 50 1995/2002
PIAGGIO LIBERTY 50 1997/2005
PIAGGIO LIBERTY MOC 2T 50 2009/2011
PIAGGIO LIBERTY PTT EU2 2T 50 2004/2005
PIAGGIO LIBERTY RST 2T 50 2004
PIAGGIO NRG EXTREME 50 1999/2000
PIAGGIO NRG MC3 AIR 50 2001/2004
PIAGGIO SFERA BASE 50 1991/1993
PIAGGIO SFERA MAQUILLAGE 2 50 1994
PIAGGIO SFERA RST 50 1995/1997
PIAGGIO TYPHOON 2T E2 50 2010/2012
PIAGGIO TYPHOON 5 KAT ARIA 50 2001/2004
PIAGGIO VESPA ET2 - CARBURATORE 50 1997/2005
PIAGGIO VESPA LX 2T 50 2005/2011
PIAGGIO VESPA PRIMAVERA 2T 50 2013/2016
PIAGGIO VESPA S 2T 50 2007/2011
PIAGGIO VESPA SPRINT 2T 50 2013/2016
PIAGGIO ZIP BASE 50 1992/1996
PIAGGIO ZIP BIMODALE 50 1994/1997
PIAGGIO ZIP DISCO 50 1996/1999
PIAGGIO ZIP EURO1 50 2000/2004
PIAGGIO ZIP FAST RAIDER 50 1993/1994
PIAGGIO ZIP FAST RAIDER RST 50 1996/1997
PIAGGIO ZIP RST AIR 50 1996/1999