| Advantage | Description |
|---|---|
| Reliable & durable | Ideal for long distances & everyday use |
| Expandable | Perfect basis for later performance upgrades |
| Compatible | Fits with standard crankshaft, clutch, ignition |
| Optional 187 cc | Possible with 60 mm stroke and spacer kit |
Maximum suitability for everyday use meets real tuning potential: The revised BGM PRO 177 is now also suitable for models with electric starters - a cylinder kit with 177 cc that easily manages the balancing act between a powerful touring setup and sporty power delivery.
The power of your PX125 or PX150 engine can be more than doubled simply by replacing the standard cylinder. The cylinder delivers immediately noticeable torque - ideal for relaxed rides with a reserve. At the same time, the BGM PRO 177 is suitable as a basis for comprehensive performance increases: up to over 20 hp at the rear wheel are possible, while maintaining the same level of reliability.
The cylinder is compatible with all standard components - only the jetting and spark plug need to be adapted. Operation is permanently robust thanks to thermal reserves. The moderate compression ratio (10.3:1) allows a squeezing edge of 0.8-1.2 mm - for perfectly smooth running.
| Cylinder material | Aluminum, hard-coated (Nikasil) |
| Bore / stroke | Ø 63 mm / 57-60 mm (187 ccm max.) |
| Piston | Cast iron, high silicon content, 2x 1 mm piston rings |
| Cylinder head | CNC-milled, with central sensor thread |
| Compatible with | PX125, PX150, LML 2T - also E-Start models |
| Question: Question | Answer |
|---|---|
| Does the cylinder fit PX with electric starter? | Yes, the new version is also designed for electric starter models. |
| How much power is realistic? | Depending on the setup, 12-20+ hp at the rear wheel is possible. |
| Can I install the cylinder without milling? | Yes, it is designed as a plug-and-play kit. Only the jetting needs to be adapted. |
| Is the BGM177 capable of long-stroke running? | Yes, up to 60 mm without any problems, with adaptation also up to 64 mm stroke. |
| Which ignition setting is recommended? | Static 19° from TDC - alternatively 18° for PX125E models. |
The BGM PRO 177 is the ideal choice for anyone who wants to take their PX engine to a new level of performance - suitable for everyday use, reliable and with plenty of potential for more. Whether with SI carburetor and touring box or in high-end configuration: This cylinder delivers performance with brains.
DE | €
