Cylinder -DR 70 cc Evolution- Minarelli LC

Preview: Cylinder -DR 70 cc Evolution- Minarelli LC

Description

Grey cast iron cylinder with a full displacement plus to 70ccm. The processing is on a very good level and is to be compared throughout with the quality of the series cylinders.

The cylinders of the company D.R. (Diffusione Ricambi) enjoy a very good reputation. Already in the shift scooter sector DR has developed powerful cylinders with a long life span at a reasonable price. So one can almost make a general recommendation for the automatic sector for those who want to make their scooter faster without much effort.

The DR distinguishes itself by a generous plus in displacement, optimized control times and above all larger channel widths, especially the overflow valve. The DR philosophy is to give the cylinders a wide speed band with plenty of torque from the lower speed range. This also makes the DRs interesting for tuning mufflers, so there's not much effort required.

The DRs respond extremely well to further -after-treatment - by means of a suitable exhaust and carburetor. This way the performance is increased again significantly without any loss of reliability.

The 70cc D.R. is our secret favourite. The price/performance ratio is very good and the performance is almost at Polini level. But the D.R. has the richer torque and rides fuller. Longevity is not an issue with these cylinders and they even forgive the one or other jam in case the joy of experimentation was too much.
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€174.00 *

incl. VAT plus shipping costs

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General
performance class:	sport
Gudgeon pins
diameter:	10 mm
Spark plugs
thread type:	M14x1,25
thread spark plug:	long
heat rating NGK:	B8ES
Cylinders
displacement:	68 cm³
bore:	47 mm
engine type:	2-stroke
type of cooling:	liquid cooled
material:	cast iron
material piston cylinder surface:	cast iron
cylinder head inclusive:
cylinder gasket set inclusive:
number of transfers (incl.boost ports):	8
number of boost ports:	2
shape exhaust port:	single port (oval)
exhaust mounting:	flange
flange type:	2 studs
exhaust bolt pitch:	48 mm
thread exhaust studs:	M6
Crankshafts
stroke:	39.2 mm
Pistons
number of piston rings:	2
production method piston:	cast
Piston rings
piston ring type:	common ring
thickness rings:	1,2mm
Circlips
circlip type:	G-type
wire size of circlip:	1,0mm
Cylinder heads
cylinder head type:	one piece

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