If you own a classic Vespa you will love our web-shop. Please check out our new web site which is under construction and subscribe to the Vespajets newsletter for when then site will be launched. If you have any questions about our parts and your Scooter please ask, we will be able to guide you into what parts you want and will fit your scooter. Vespa PX125, PX150, Cosa125/150, GTR125, TS125, Sprint Veloce (VLB1T 0150001-), LML Star/Stella 125/150, Motovespa PX125 Iris(99M), PX150 Iris(75M), 125 CL (9CL), 150 CL (9NC).BGM PRO 177CC CYLINDER FOR VESPA PX125/150 (ALSO WITH ELECTRIC STARTER). New version of the proven BGM 177 cylinder for Vespa PX125/150, now also suitable for vehicles with electric starter. The bgm PRO 177 cylinder is a hard ceramic coated aluminium cylinder with 63mm bore. The coating (nickel-silicon-carbide) provides an extremely hard and durable raceway. The piston has a high silicon content.
Therefore it has a lower thermal expansion, is more wear resistant and thermally very stable. Two 1mm thick piston rings minimize friction and thus increase power and speed stability. The channel layout of the cylinder with four main transfer ports and two boost ports is designed for high pressure from the lower speed range. The timing is with 57mm stroke at 118° overflow angle to 171° exhaust angle.
The cylinder kit is designed as a plug'n play solution, simply plugged in with SI carburetor and bgm Big Box Touring the power is around 15 HP and the torque is 17 - 19Nm at the rear wheel. With further expansion stages 25 HP and more are no problem. Low consumption values and the associated high range are a further bonus. Capacity 57/60mm Stroke: 177/187 ccm.
Piston: Cast iron piston with high silicon content and two 1mm steel piston rings. Recommended squeezing edge: 0.8- 1.2mm. 57mm Stroke: Overflow 118°, outlet 171° (with foot seal 0.2mm, no head gasket). 60mm stroke: Overcurrent 123°, outlet 173° (with foot gasket 0.2mm, head spacer 1.5mm). (head spacer for 60mm stroke not included, optional available, see accessories).
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. Universal plug'n play cylinder kit with early starting performance, wide rpm range, low consumption and an unbeatable price-performance ratio! NOTE: Not suitable in combination with an elestart flywheel. For models with an electric starter, remove the E-Start ring gear (the ring gear is shrunk on) or use a flywheel without ring gear (see accessories).
Vespa (Motovespa) Vespa 125 CL (engine 9CL). Vespa (Motovespa) Vespa 150 CL (engine 9NC). Vespa (Motovespa) PX 125 Iris (engine 99M).
Vespa (Motovespa) PX 150 Iris (engine 75M). Vespa (Piaggio) 125 PX E FL (2017-, ZAPM74100). Vespa (Piaggio) 150 PX E FL (2017-, ZAPM74200). Vespa (Piaggio) 125 PX E FL (2016-, ZAPM74100) special edition "70 years".Vespa (Piaggio) 150 PX E FL (2016-, ZAPM74200) special edition "70 years". Vespa (Piaggio) Vespa 150 Sprint Veloce (VLB1T). Vespa (Piaggio) Vespa 125 GTR (VLB2T). Vespa (Piaggio) Cosa 150 CL (VLR1T). Vespa (Piaggio) Cosa 150 CLX (VLR1T300). Vespa (Piaggio) Cosa 150 FL (VLR2T).
Vespa (Piaggio) P 150 X (VLX1T, -1980). Vespa (Piaggio) Vespa 125 TS (VNL3T). Vespa (Piaggio) Cosa 125 CL (VNR1T). Vespa (Piaggio) Cosa 125 CLX (VNR1T300). Vespa (Piaggio) Cosa 125 CLX (VNR1T301).
Vespa (Piaggio) P 125 X (VNX1T, -1983). Vespa (Piaggio) PX 125 E FL (ZAPM09302, 2001-). Vespa (Piaggio) PX 150 E FL (ZAPM09401, 2001-). Once you receive your goods, please inspect them for any da. If all is well please leave feedback, so we are aware that you have received your goods.
7 days after we have despatched your order, if we have not been notified by you of any problem, or received feedback, we will send a feedback reminder. The item "BGM 177 187 Alu Nikasil Cylinder Kit Vespa PX 125 150 LML for Electric Start" is in sale since Friday, December 10, 2021.This item is in the category "Vehicle Parts & Accessories\Scooter Parts\Other Scooter Parts". The seller is "vespajets" and is located in colchester, Essex. This item can be shipped to United Kingdom, Antigua and barbuda, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, Canada, Brazil, Japan, New Zealand, China, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Dominica, Ecuador, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French guiana, Iceland, Jersey, Jordan, Cambodia, Saint kitts and nevis, Saint lucia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Peru, Paraguay, Reunion, Turks and caicos islands, Aruba, Saudi arabia, South africa, United arab emirates, Bahamas, Colombia, Kuwait, Philippines, Qatar, Uruguay, Viet nam, Russian federation.