Smallframe Bowden cables with Ferdinand Baratella: Minimize friction and install stress-free

Better bolting part 4: Material science and professional routes through the frame

Part 4 of our "Better bolting" series with Ferdinand Baratella is dedicated to an often underestimated factor for a good riding experience: the cables. A precise clutch and a smooth-running throttle grip are not witchcraft, but the result of high-quality material and correct routing. In the video, Ferdinand shows what is important to ensure that operation is not a feat of strength, but works exactly as it should.

Material science: The difference lies in the detail

At first glance, all cables look the same. In operation, you notice the difference immediately. Ferdinand breaks down the technology behind our bgm PRO trains:

Outer cover: PE beats PTFE

The inner coating of the outer cover determines the frictional resistance. We use polyethylene (PE) here. Although this material is more expensive than the usual PTFE, it offers significantly better sliding properties. The result: more direct feedback on the lever and less effort.

Inner cable: flexibility thanks to braided core

The wheat is separated from the chaff, especially when it comes to tight radii. Ferdinand demonstrates the difference between rigid standard wires and cables with a braided core. These are extremely flexible and can be neatly routed even in tight Vespa handlebars without giving up the ghost. Ideal for throttle cables that must not jam mechanically.

Practice: Laying in the frame

Theory is good, installation is better. Ferdinand shows how to get the "cable tangle" cleanly through the tunnel:

• Loop instead of kink: many modern carburetors (e.g. PHBH30) have the cable connection at the top. Ferdinand shows the correct laying technique (loop) to keep friction to a minimum despite the deflection.
• Space problem round handlebars: The V50 is cramped with a speedometer. In the video you can see the only route for the clutch cable that works permanently without the speedometer pinching the cable.
• Handling tips: How to maneuver stubborn cables past the steering lock ("Steer, don't lengthen!") and why insulating tape is a mechanic's best friend when pulling through.

Conclusion

If you want performance from your motor, you can't skimp on the control unit. With the bgm PRO slick liners and a clean installation, you eliminate friction and ensure a defined, rich pressure point - which is exactly how it should feel.

The next part is about how to connect and adjust the Bowden cables - so stay tuned!