incl. VAT plus shipping costs
|thread spark plug:||long|
|heat rating NGK:||B9ES|
|type of cooling:||air cooled|
|material piston cylinder surface:||Ceramic|
|cylinder head inclusive:|
|cylinder gasket set inclusive:|
|number of transfers (incl.boost ports):||6|
|number of boost ports:||2|
|shape exhaust port:||single port (oval)|
|diameter exhaust stub:||37 mm|
|number of piston rings:||2|
|production method piston:||cast|
|piston ring type:||common ring|
|wire size of circlip:||1,0mm|
|cylinder head type:||one piece|
Low consumption values and the associated high range are a further bonus.
The overcurrent channels at the cylinder base have a sprue. Thus the channels on the cylinder correspond to those on the motor housing. The sprue can easily be removed to use the complete cross section of the channels.
The cylinder head is CNC milled from the solid. The combustion chamber is sunk 4 mm deep into the cylinder for perfect centering.
In addition, the adjustment of the squeezing edge is thus considerably easier and the sealing is always guaranteed. In the middle there is a thread for the mounting of a temperature sensor.
The reduction can be longer than usual in the 177ccm class due to the high torque. If a touring oriented exhaust with early support is used (BigBox Touring, Polini Original Box) at least one coupling pinion with 23 teeth should be used on a PX125. We carry these especially for the original primary wheel with 68 teeth (see accessories). Motors with a long stroke shaft also pull a 24/65 reduction on PX125 gears.
Our TIP for a very powerful, wide band and at the same time fast motor is to use the BGM177 cylinder on a LML diaphragm motor. Replace the original crankshaft with a 60mm full cheek shaft, replace the original LML steel diaphragm plates with carbon ones and use a sufficiently long primary reduction (on PX125 gearbox a 24/65 or similar). Together with the perfectly harmonizing BGM Big Box Touring exhaust system you get a fantastic engine that already feels very mature, inconspicuous but damn fast. In fourth gear it already starts from 40km/h to reach a top speed of more than 120km/h in one go.
FAZIT: Universal plug 'n play cylinder kit with early starting performance, wide rpm range, low consumption and an unbeatable price-performance ratio!
10.7 : 1
11.2 : 1
10.5 : 1
11.0 : 1
10.3 : 1
10.8 : 1
10.2 : 1
10.7 : 1
10.1 : 1
10.5 : 1
NOTE: Not suitable in combination with an elestart polewheel. For models with an electric starter, remove the E-Start ring gear (the ring gear is shrunk on) or use a polewheel without ring gear (see accessories).
Petite retouche necessaire entre Chemise et volant du demarreur.
Le reste est Parfait.
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