Vespa PX 125 150 DR 177cc 180cc Cylinder Kit Ø63mm

Vespa PX 125 150 DR 177cc 180cc Cylinder Kit Ø63mm

The DR177 has been on the market for a very long time and has rightly earned its reputation for reliability as a touring favourite for the 125/150cc models.

Its simple basic design predestines it for a simple but effective tuning, just by replacing the stock cylinder with the DR177. The engine then allows driving performance that roughly corresponds to that of a PX200. Its compression ratio is very moderate, the overflow cut-outs at the cylinder base correspond to those of the standard cylinder. Thus, it offers ideal prerequisites for tuning beginners.

Technical characteristics:
Bore = 63 mm
Displacement = 177 cc
Compression ratio = 1:8,5
Stroke = 57 mm
Piston = Ø 63
Power = 9-12hp at rear wheel
Ignition timing: 19-21°

Minachrome cast iron Cylinder ( With Added Chrome ) - 7 transfer ports - Main exhaust port and two added booster exhaust ports.

The cylinder head is especially designed to maximise combustion and ease cooling.
The cylinder has been quite cleverly designed to feed the extra mixture via boost ports in the cylinder wall and holes in the side of the piston making no alterations necessary to the engine casing.

Ignition timing is the standard setting for new models on unleaded fuel which is 18 degrees btdc.

DR 177 kit
DR180

To Fit: P125X, P50X, PX125E, PX150E, EFL, LML
Old Vespa Sprint Veloce, and late Super ( With three transfer ports )

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