Kit 70cc Ø48mm DR Racing Evolution cast iron scooter PIAGGIO liquid (NRG, RUNNER ...)

Not approved on the road, reserved for competition.

A very good kit for piaggio, its architecture, the shape of its exhaust and its study gives it a perfect sweep. Dr racing has on this kit fitted a cylinder head with polished hemispherical combustion chamber, the compression ratio is 1:12 so really perfect for this kit. It is 48mm in diameter so with the original piaggio race (39.3mm), it offers 71cc Its cast iron is here treated MINACROM (patent filed MOTOR PARTS "addition of chrome"). This kit is really extremely solid and favors the couple without forgetting the high speeds. Attention, the cylinder head is delivered without water connection but the TOP PERFORMANCES connection is mounted without modification on it!

Its piston worked on the cylinder has 2 segments so a domed chrome (S10). The cylinder head is obviously aluminum in order to better dissipate heat. We will recommend it to ride every day (except France because it is not approved) or for the stunt thanks to its torque and its strength.

 

We recommend to accompany this kit : 17.5mm carburetion, torque-based racing exhaust, reinforced crankshaft and bearings, cold racing spark plug.

The pack includes :

Piston

2 segments including one chrome

An aluminum cylinder head

A cast iron cylinder

Pack attached

Cylinder head clamps

Sticker and instructions

Piston pin

Piston clips

2 cylinder studs

As an option we offer 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 to the piston and the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!

 

Installs on motor scooter PIAGGIO / GILERA Liquid 50cc 2 times:

APRILIA SR (carb.) 50 2T LC 2004 (PIAGGIO engine)
ARPILIA SR R (carb.) 50 2T LC (PIAGGIO engine)

DERBI GP1 50 2T LC
DERBI GP1 OPEN 50 2T LC
DERBI GP1 REVOLUTION 50 2T LC

GILERA DNA 50 2T LC
GILERA RUNNER SP 50 2T LC before 2005
GILERA RUNNER SP (carb.) 50 2T LC after 2006 (C451M)
GILERA RUNNER 50 2T LC

PIAGGIO NRG EXTREME 50 2T LC
PIAGGIO NRG MC2 50 2T LC before 1997
PIAGGIO NRG MC2 50 2T LC after 1998
PIAGGIO NRG 50 2T LC
PIAGGIO NRG MC3 DD 50 2T LC
PIAGGIO NTT 50 2T LC
PIAGGIO NRG Power DD 50 2T LC
PIAGGIO QUARTZ 50 2T LC
PIAGGIO ZIP SP 50 2T LC after 2001
PIAGGIO ZIP SP 50 2T LC before 2000
PIAGGIO Zip sp2 50cc LC

And other models ...