Last Updated on 28 February 2026 by Cycloscope
Tested: Old Man Mountain: Hemlock with flip cages, Atlas 12L Rack Pack, Ponderosa Panniers, and Divide Rack
The guys from Old Man Mountain sent us some great gear to test: the Divide Rack, Ponderosa Panniers, Hemlock with FLiP Cages, and the Atlas 12 Rack Pack. We had heard good things about them for a while, and finally had the chance to try firsthand what had reached us through the grapevine.
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As soon as we opened the box, we immediately had the feeling we were holding something truly high-quality. Even though it took us a little while to get everything mounted, the aesthetic side didn’t disappoint either. A new setup that’s robust, original, and classy. This is our review.
Hemlock with flip cages
The Hemlock with FLiP Cages is a fork-mounted cargo system. It is a secure way to carry gear without installing full racks.
It consists of a pair of waterproof roll-top bags designed to sit low on the fork legs, combined with the brand’s FLiP Cages, a distinctive mounting solution that serves as both a support platform and a quick-release interface.
The result is a setup that feels closer to a compact pannier system than a simple strapped dry bag, but with the versatility and minimal footprint typical of bikepacking gear.
In practical use, the system is straightforward and intuitive. The cages are first bolted onto three-pack mounts on the fork, or onto compatible adapters if the bike lacks dedicated bosses. Once the cages are in place, the Hemlock bags are packed and sealed using their roll-top closure, which compresses the load and keeps water out.
Attaching them takes only a few seconds: the base of the bag hooks into the cage, the upper section is pressed into position, and a small lever is rotated to lock everything securely. Removing them at the end of a ride or when setting up camp is just as quick, which is one of the aspects we appreciate most.
When the bags are not in use, the FLiP Cages themselves can still serve as cargo cages, holding bottles or other gear with straps, making the system adaptable to different types of trips.
The Hemlock bags are made from welded waterproof fabric with reinforced panels in high-wear areas, and in real-world use, they are widely regarded as extremely resistant to rain, dust, and trail abuse.
The materials feel solid and slightly structured, helping the bags keep their shape and sit quietly on rough terrain. The locking mechanism keeps the bags firmly in place even on rocky tracks, and the weight distribution on the fork gives the bike a stable, planted feel when properly balanced.
At the same time, this sturdiness is also part of the trade-off. Compared with simpler dry-bag-and-strap setups, the Hemlock system is heavier and more substantial, which may not appeal to riders focused on ultralight packing. We are willing to accept a bit more weight in exchange for a refined and secure carrying experience. In the end, a few hundred grams really don’t make any difference on a bike trip.
The fixed volume of each bag means you are working with a defined capacity rather than a highly compressible load, which can be either an advantage or a limitation depending on how you pack.
The quick-release design is a major quality-of-life improvement, especially on long tours where removing bags frequently becomes part of the daily routine. The system feels premium and well-engineered.
Atlas 12 l rack pack
Honestly, I hate saddle bags; I’m always afraid they’ll collapse under their own weight and end up rubbing against the tire, or that they’ll tilt the saddle upward (speaking from experience).
Okay, maybe hate is a bit of a strong word, but if I had to ride the dirt roads of the Himalayas again, I would definitely have preferred this setup for the rear bag.
The Atlas 12 L Rack Pack by Old Man Mountain is essentially a compact, waterproof rear rack bag designed to replace the classic saddle pack while keeping weight lower and the bike more stable.
It mounts directly to the top deck of a rack using four integrated straps, and in practice, that simplicity is part of its appeal: you load it like a dry bag, roll the closure tightly, then cinch it down to the rack so it sits firm and silent.
Because it doesn’t occupy the seatpost area, it allows full use of a dropper post and leaves more room for movement on technical terrain. The bag is built from welded TPU fabric with reinforced panels and a structured upper frame, which helps it maintain its shape and resist sagging even when packed with softer items.
Divide rack
The Divide rack is the foundation piece that both of these bags (the Ponderosa and the Atlas) are often paired with. It’s an aluminum alloy rack designed to mount either front or rear, attaching to the frame or directly to the axle via a specific fit kit, which is why it’s frequently chosen for bikes without traditional rack mounts.
In everyday use, installation is the most involved part: it requires tools and careful adjustment of the mounting struts, but once properly set up, it becomes a very stable platform capable of carrying heavy loads.
It is compatible with many different bikes and is overall durable, making it a rack that can handle significant weight and rough conditions without flexing. It is heavier and more expensive than other simpler racks, and axle-mounted versions may need to be removed for wheel maintenance.
Ponderosa panniers
The Ponderosa panniers take a different approach, aiming to bring the capacity of traditional touring bags into a lighter, bikepacking-friendly form.
Each bag holds about 13 liters (a step above the mini-panniers category) and uses a roll-top closure with welded waterproof fabric and reinforced attachment points, so they’re meant to handle bad weather and rough riding without needing rain covers.
To use them, hang them from the pannier rail with two cammed Velcro straps, then secure a lower strap around the rack tubing to prevent movement. Once attached, the bags compress tightly thanks to internal stiffener sheets at the back and front, which help keep them slim and prevent the typical “flapping pannier” effect on trails.
The main drawback is that attaching and detaching them can feel a bit fiddly, especially when fully packed, because the minimalist Velcro system trades quick release for a very tight fit.
We usually keep our clothes and the things we need for the night in a separate bag inside the pannier, so we don’t have to remove everything each time; we just leave the panniers on the bike.
Still, their durability, replaceable straps, and structured shape tend to make them feel more technical and robust than many soft bikepacking panniers.
Final Verdict About The Old Man Mountain Bikepacking Kit
After testing the Hemlock with FLiP Cages, Atlas 12L Rack Pack, Ponderosa Panniers, and the Divide Rack together, it’s clear that Old Man Mountain isn’t chasing trends — they’re building a system.
What stands out most is the cohesion between the components. The Divide Rack provides a bombproof foundation, the Atlas 12L eliminates the usual frustrations of large saddle bags, the Ponderosa panniers offer real carrying capacity without turning your bike into a touring barge, and the Hemlock with FLiP Cages delivers a fork-mounted solution that feels engineered rather than improvised.
This isn’t ultralight gear. It’s not the minimalist, strap-everything-anywhere approach that dominates parts of modern bikepacking. Instead, it’s a refined, modular system designed for riders who value stability, durability, and ease of use over shaving the last few grams. And in real-world travel — especially long-distance or rough-terrain trips — that trade-off makes a lot of sense.
The quick-release functionality of the Hemlock system and the stability of the Atlas Rack Pack genuinely improve daily life on tour. The Ponderosa panniers, while slightly fiddly to remove, reward you with a tight, rattle-free ride. And once the Divide Rack is properly installed, it inspires confidence in a way lighter racks often don’t.
In short: this setup feels built for riders who go far, carry real gear, and want equipment that won’t become a weak point halfway through the journey.
Robust, thoughtfully engineered, and made to last — Old Man Mountain’s ecosystem is an investment, but for serious bike travelers, it’s one that makes sense.