Not homologated, strictly prohibited on the road, reserved for competition and closed, private circuits.
The most racing cast iron kit from the Italian company PARMAKIT (with the special 43mm stroke), the RACING is a very powerful model in Ø47mm therefore 70cc cast iron.
Compared to the sport model, this kit is based on a higher speed, its mono segment allows it to take turns faster and more extensively. PARMAKIT has equipped this kit with a graphite-treated piston with a high silicon content, an ultra-solid domed hard chrome segment with a lower contact surface for even better performance.
The cylinder remains identical to the sport model, it is a very good cast iron cylinder, the finish is good, the exhaust has a special shape, the intake is revised and corrected and the diagrams are quite high. We can compare this kit to the POLINI corsa or TOP PERFORMANCES racing cast iron power level.
The cylinder head is a high compression model, revised for better cooling, the combustion chamber is high compression, tapered and polished.
This cylinder head is mounted on an O-ring like all real racing kits, it advantageously replaces the aluminum type seal for more solidity. This kit is recommended for everyday riding (outside France), for stunts and racing, it is very powerful and above all it maintains maximum strength.
We advise to accompany this kit with : reinforced crankshaft, reinforced bearings set C3 or C4, carburation 19mm minimum recommended, racing exhaust.
The kit includes :
Mono segment racing piston d.47mm
1 segment d.47mm
2 piston clips d.10mm or 12mm
Piston pin d.10mm or 12mm
Cast iron racing cylinder
Complete seal pack
PARMAKIT sticker
Notice
Cylinder head d.47mm
As an option we offer you a stage 1 preparation, this preparation is a modification of the channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement of the piston and the lower skirts is also included in this modification. Count a little extra time for this preparation!
Mounts on :
APRILIA AMICO
APRILIA SR (before 1993 only)
FANTIC BIG WHEEL
CARELLI PONY
GARELLI SR
ITALJET BAZOOKA
ITALJET PISTA
ITALJET REPORTER
ITALJET SCOOP
ITALJET YANKEE
ITALJET ASCOT
ITALJET ASTRA
LEM FLASH
LEM GHIBLI
LEM TORNADO
LEM TORNADO SS1
KOTIR SR
KTM CHRONO
MBK BOOSTER
MBK BOOSTER NAKED
MBK BOOSTER ROCKET
MBK BOOSTER NEXT GENERATION (NG)
MBK BOOSTER CW
MBK BOOSTER SPIRIT
MBK STUNT
MBK TARGET
MBK BOOSTER TRACK
YAMAHA BW'S
YAMAHA BW'S NG
YAMAHA BW'S ORIGINAL
YAMAHA BW'S NAKED
YAMAHA CRZ
YAMAHA CT
YAMAHA SLIDER
YAMAHA SPY
YAMAHA ZUMA
And other models...
