Cylinder tuning with 47.6mm bore 70ccm 10mm piston pin with cylinder head and flat tuning piston, better Nikasil track for maximum power and torque

Cylinders with more displacement for 50ccm air-cooled scooters.

Advantages of the cylinder kit for 50cc scooters:
• Big bore kit with more displacement for maximum power at maximum torque.
• Aluminum / Nikasil cylinder. This means that performance does not decrease if the temperature is too high!
• Improved materials compared to the original
• Inexpensive alternative to the more expensive, weaker original cylinder
• Improved cylinder life
The cylinder has a high-quality raceway for the best power output and maximum quality with the lowest possible friction loss.
Improved runnability and lubrication of the piston thanks to the special grinding and honing process. Much more resilient and steadfast! ?Manufacture on the most modern machining centers.
Piston specially matched to the cylinder, which has the maximum load capacity and wear resistance! This makes it extremely reliable!
Custom-fit, high-quality special seal kit included in the scope of delivery
Cylinder kit complete with cylinder head
All parts are also available individually as spare parts from all of us
High quality cylinder complete kit!
•Scope of delivery:
Cylinder kit complete with cylinder head
Piston complete with 10mm piston pin
Special seal set!
all necessary parts for immediate assembly!
Our special tuning cylinder brings top performance and absolutely the best results!
Technical specifications:
Material of the cylinder: aluminum
Type of cooling: air-cooled
Bore: 47.6 mm
Stroke: 39.1 mm
Displacement: 69.9 cc
Piston pin diameter: 10 mm
Shape of the piston crown: domed
Number of piston rings: 1
Thickness of the upper piston ring: 1 mm
Type of piston ring: chrome-plated
Outlet: 1 x oval
Cylinder head: Included in delivery
Complete kit ready for assembly.
Nothing else is needed!
All parts are included.

Compatible with following models:
APRILIA AMICO 50 1996/1998
APRILIA SR FINO 1994 MOT. VERT 50 1994
FANTIC PONY SR 50 1993
GARELLI BIG WHEEL 50 2020
GARELLI PONY 50 1995
GARELLI SR 50 1995
ITALJET ASCOT 50 2020
ITALJET ASTRA 50 2020
ITALJET BA ZOOKA 1 50 1993
ITALJET PISTA1 50 1995
ITALJET PISTA 2 YANKEE 50 1995/1996
ITALJET REPORTER 50 1992/1994
ITALJET SCOOP 2/3 50 1992/1996
KOTIR SR 50 2020
KTM CHRONO 50 2020
LEM FLASH 50 1994/1999
LEM GHIBLI 50 2020
LEM TORNADO SS1 50 2020
MBK BOOSTER CW 50 1990/2002
MBK BOOSTER CW L 50 2001/2003
MBK BOOSTER CW L SPIRIT 50 2003
MBK BOOSTER CW NAKED 50 2003
MBK BOOSTER CW R ROAD 50 1994/1995
MBK BOOSTER CW RS NG 50 1995/2003
MBK BOOSTER CW RS NG EURO1 50 1999/2000
MBK BOOSTER CW RS NG KAT 50 1999/2000
MBK BOOSTER CW RSP ROCKET 50 1997/1998
MBK BOOSTER CW RSX TRACK 50 1996/1998
MBK BOOSTER CW SPIRIT 50 1996/2000
MBK BOOSTER CW SPIRIT EURO2 50 2002/2003
MBK BOOSTER CW SP SPIRIT EURO2 50 2002
MBK CR Z TARGET 50 1991/1995
MBK CT S / SS SORRISO 50 1991/1995
MBK EW STUNT 50 2000/2002
YAMAHA BW'S 50 2007/2016
YAMAHA BW'S BUMP 50 1997/1998
YAMAHA BW'S NAKED 50 2003/2009
YAMAHA BW'S NEXT GENERATION 50 1997/2003
YAMAHA BW'S NEXT GENERATION KAT 50 1999/2000
YAMAHA BW'S ORIGINAL / SPY 50 1997/2002
YAMAHA BW'S ORIGINAL EURO2 50 2003
YAMAHA BW'S R 50 2001
YAMAHA CR Z TARGET 50 1991/1995
YAMAHA CT SUPER SPORT 50 1990/1995
YAMAHA CW BW'S ORIGINAL EURO2 50 2002
YAMAHA CW L BW'S 50 2003
YAMAHA CW RS SPY 50 1995/1998
YAMAHA CW SP BW'S ORIGINAL EURO2 50 2002
YAMAHA EW SLIDER 50 2000/2002