| Question | Answer |
|---|---|
| Does the PK fork unit fit without adaptation? | Yes, it is plug and play for Rally180, Rally200, Sprint150, GTR125, GT125 and GL150. |
| Which disc brakes are compatible? | The fork fits all disc brake systems designed for the Ø20 mm axle - BGM PRO, Piaggio, Grimeca. |
| Do I need to modify the frame? | Either the standard mudguard must be adapted or a suitable mudguard made of GRP or carbon should be used. |
| Is the shock absorber included? | The shock absorber is available separately. Recommendation: BGM7783NB. |
| What added value does the conversion offer in everyday use? | Noticeably better response, precise brake control and more comfort. In addition, the conversion enables the use of a disc brake and prevents the fork from bottoming out during hard braking maneuvers. |
For superior handling and modern braking performance in classic rally, sprint and GTR models: The BGM PRO fork/steering tube/head tube conversion uses the Vespa PK fork to make your Vespa Rally180 (VSD1T), Rally200 (VSE1T), Sprint150 (VLB1T), GTR125 (VNL2T), GT125 (VNL2T) and GL150 (VLA1T) fit for the installation of a disc brake - without compromising on the look, but with a noticeable increase in safety.
With powerful engines above 30 hp, original drum brakes reach their limits. At the same time, the original fork tends to bottom out quickly due to its design. If harder springs and/or shock absorbers are used, the handling often becomes uncomfortable. With this fork/steering tube/head tube combination, you can raise suspension and braking behavior to a new level:
✅ PK fork technology: Higher reserves of steering precision and braking power
✅ Smooth response behavior: No bottoming out during hard braking maneuvers
✅ Disc brake compatible: The fork is suitable for all disc brake systems designed for the Ø20 mm axle - BGM PRO, Piaggio, Grimeca.
✅ Classic look: Visually harmonious with the original design
✅ Plug and play: Ready to fit, without welding or frame work
The conversion uses the proven head tube dimensions and fork of the PK series and combines both with a reinforced swingarm structure. The complete fork/steering tube/head tube assembly including swingarm is supplied. Shock absorber mount, steering stop and fork steerer are already optimally adapted - ideal for Rally180, Rally200, Sprint150, GTR125, GT125 and GL150, without any milling or welding on the frame.
Depending on the model, the mudguard mount may need to be modified or replaced with a custom mudguard - e.g. from PLC Corse or TOMAS Compositi.
✅ Adapter plate for shock absorber mount (item no. 7674326) - for precise adjustment
✅ BGM PRO shock absorber (item no. BGM7783NB) - ideal for PK forks and your models
| Question | Answer |
|---|---|
| Does the PK fork unit fit without adaptation? | Yes, it is plug and play for Rally180, Rally200, Sprint150, GTR125, GT125 and GL150. |
| Which disc brakes are compatible? | The fork fits all disc brake systems designed for the Ø20 mm axle - BGM PRO, Piaggio, Grimeca. |
| Do I need to modify the frame? | Either the standard mudguard must be adapted or a suitable mudguard made of GRP or carbon should be used. |
| Is the shock absorber included? | The shock absorber is available separately. Recommendation: BGM7783NB. |
| What added value does the conversion offer in everyday use? | Noticeably better response, precise brake control and more comfort. In addition, the conversion enables the use of a disc brake and prevents the fork from bottoming out during hard braking maneuvers. |
DE | €
