Taking Flight: Does the Rope Runner Vertec + Aeris Kit Elevate Your Climb?

The Rope Runner lineage has always been a favorite among SRT climbers, but the new Vertec model and its optional Aeris Friction Body Kit promise to take performance to the next level. We put the combo to the test to see if it lives up to the hype.

For those who live and breathe stationary rope systems (SRS), the Rope Runner needs little introduction. Born from the inventive mind of Kevin Bingham in Detroit, the earliest versions were handcrafted from aluminum using shop tools like Sawzalls and drill presses. Over time, the design evolved through water-jet fabrication and several upgrades, culminating in the Rope Runner Pro—which brought smoother edges and tool-adjustable friction, though its bird release often required a significant break-in period.

Now, the Rope Runner Vertec represents the most advanced iteration yet. With a few intelligent tweaks, it delivers a noticeable leap in convenience: the slic pins are gone, and friction adjustments can now be made without any tools at all.

The Vertec: A Refined Workhorse

Since its launch, the Vertec has quickly become a go-to device for many climbers. Early production models did feature a slightly tight attachment point that could interfere with slack tending. However, this has since been addressed—newer models now come with an elongated attachment point that resolves the issue entirely.

Once dialed in, the Vertec truly shines. The bird release—a feature that previously required patience and wear to smooth out—now collapses with minimal effort and little to no practice required. Climbers who have put in the reps with this device report that once the anodization wears and the body breaks in, the action becomes remarkably smooth. Paired with a quality carabiner like the DMM DurO Lock, the Vertec has proven itself as a reliable companion for any SRS application.

The Aeris Kit: Adding a Pulley to the Mix

So how do you improve on an already impressive device? Enter the Aeris Friction Body Kit. Some climbers initially questioned the Vertec's substitution of a pulley for a bollard, but many have since grown to appreciate the bollard's feel. The Aeris kit offers an alternative: it swaps the bollard for a good-sized pulley and introduces a subtle bump—affectionately referred to as the "baby bump"—to ensure the rope doesn't press directly onto the friction body.

Installation is straightforward, taking only a few minutes. The difference in slack tending is immediately apparent—the pulley makes a significant impact, especially when working through redirects. That said, transitioning to the Aeris kit does require a brief learning period; the bird release behaves differently, and friction settings may need to be readjusted.

Which Setup Suits Your Style?

The choice ultimately comes down to personal preference and climbing style. For climbers who prioritize control and a calculated, deliberate bird release, the original bollard configuration remains an excellent fit. On the other hand, those who thrive on speed—moving quickly from limb to limb or competing—will likely find the Aeris kit's smoother, pulley-driven action to be a perfect complement.

Both the Rope Runner Vertec and the Aeris Friction Body Kit represent meaningful steps forward in SRT climbing technology. Whether you stick with the bollard or opt for the pulley upgrade, this system offers the versatility and performance to elevate just about any climb.