Testing Results

While it might seem straightforward, the weight of a frameset can be quite subjective. It all hinges on what parts are considered part of the frameset. Liv defines a frameset as follows:

• Size medium, painted and decaled production frame
• Painted production fork (uncut)
• Seatpost with internal seatpost clamp or ISP with clamp/hardware
• Front and rear derailleur hanger/clamps
• Expander, top cap, headset and spacers
• All production hardware (water bottle bolts, etc.)

Stiffness was assessed using industry-standard protocols with size medium framesets. Liv tested both pedaling and torsional stiffness with the corresponding fork in place. This provides a far more accurate measure of how a bicycle will perform in real-world conditions and helps ensure that our testing procedures translate into performance gains that can be felt on the road.

Our testing determined how much the complete frameset flexed torsionally under load, with each frame locked at the rear dropouts and lateral force applied to the fork. Higher frame stiffness means better cornering and response to rider input.

Despite being significantly lighter, the all-new Langma Advanced SL offers a 2.50% increase in pedaling stiffness and a 6.75% increase in torsional stiffness over the previous generation. 

Most of the gains in stiffness come from modified sections of the head tube, down tube, and bottom bracket area. The increased frame stiffness results in better power transmission, allowing the rider to reach and maintain higher speeds with less effort.

By improving stiffness and decreasing weight, the new Langma Advanced SL significantly boosts its overall efficiency (stiffness-to-weight ratio). These advancements translate into a more responsive and agile ride, allowing riders to experience quicker acceleration, better handling, and sustained speeds with less effort.

Whether climbing steep hills or sprinting on flat roads, the enhanced stiffness-to-weight ratio ensures that every pedal stroke is effectively converted into forward momentum, providing a competitive edge and a superior riding experience.