Hardtail vs. Gravel Bikes: Why I think the 29er MTB is Still the King of Bikepacking

Let’s talk about the elephant in the room, or rather, the drop-bar bike in the room. Please give me a little latitude here for my op-ed piece as someone who has ridden drop and flat bars for many years!

If you’ve spent five minutes on Instagram lately, you’d think the gravel bike was the only way to travel. They look sleek, they’re light, and they have that "adventure" aesthetic that screams, "I drink artisanal coffee in the woods."

But here’s a truth from someone who lives and breathes Iberian trails: when the going gets tough, the 29er hardtail mountain bike is still the undisputed king.

Don’t get me wrong. I love a good gravel bike. They’re fast on the flats and great for light touring - and one of our most popular bike rental models! But when you’re planning a multi-day bike-packing epic through the rugged landscapes of Spain and Portugal, you need a tool more than a fashion statement.

If you’re looking for a bicycle rental in Spain or planning to bike rent in Portugal, you’re probably facing this exact dilemma. Let’s break down why the big wheels and flat (or riser) bars are your best friends on the trail.

Table of Contents

• The Comfort Factor: Suspension is Your Spine’s Best Friend
• Gearing: When "Steep" Becomes "Impossible"
• Stability Under Load
• The "Iberian Factor": Why Our Terrain Demands More
• Flat Bars vs. Drop Bars: The Real Estate Debate
• The Versatility of the Modern 29er
• Why Renting Beats Bringing Your Own
• The Verdict
• Ready to Roll?
• Don't Miss

 

The Comfort Factor: Suspension is Your Spine’s Best Friend

You’re three days into your trip. Your legs are tired, and you’ve just hit a 10-kilometer stretch of "Roman road" in Portugal, which is basically a polite term for a pile of ancient, ankle-snapping boulders.

On a gravel bike, even with our wider tires, you’re feeling every single vibration through your wrists and spine. On a 29er hardtail, you have an additional 100mm of travel up front to soak up the abuse.

For me, it’s the difference between ending my day with a beer and a smile, or ending it with a bottle of ibuprofen and a ringing in my writs!

The 29-inch mtb tires do also play a big role here. Their "angle of attack" is shallower, meaning they roll over obstacles rather than falling into them. This isn't just about comfort; it's about energy conservation. Every bump your bike absorbs is energy you don't have to spend.

Gearing: When "Steep" Becomes "Impossible"

Spain and Portugal are not flat. If you’re looking into a bike rental for the Camino de Santiago, you’re going to encounter some serious elevation. The climbs in the Galician hills or the Sierras are no joke, especially when your bike is loaded down with 15kg+ of gear.

While our gravel bikes do come with 11-45 T "adventure" gearing, suitable for getting up most heavy grade climbs on the saddle - rather than on the pedals, I don't mind sacrificing sacrificing some top end speed for super low ratios, so I can just spin my way up a cobbled climb at the end of a tough day!

For many of us mortals, a mountain bike’s "granny gear" is a literal lifesaver. Being able to sit and spin up a 15% grade instead of grinding your knees into dust is what keeps the trip fun.

Stability Under Load

Have you ever tried to ride a lightweight gravel bike with a full set of panniers and a handlebar bag? It can get twitchy. Fast.

A hardtail mountain bike is built for stability. The geometry is longer, the wheelbase is wider, and the flat bars give you significantly more leverage.

When you’re descending a loose, gravelly track in the heat of a Spanish afternoon, you want to feel in control. You don't want the bike to decide which way it’s going; you want to tell it.

The "Iberian Factor": Why Our Terrain Demands More

If you were bikepacking across the flat plains of the Netherlands, sure, bring the gravel bike. But bicycle rental in Portugal or bike hire in Spain usually means dealing with a variety of surfaces in a single hour.

You might start on smooth asphalt, transition to a dusty tractor path, hit some sand, and finish on a cobbled climb into a faraway village.

For me, the 29er is the ultimate "do-it-all" machine for this. Its wider tires (we offer 2.25" tires for a balance between easy rolling and trail ready grip) offer a footprint that keeps you floating over sand and gripping on loose corners.

For these reasons, when you look at our Camino 14-day touring pack, you’ll see we also offer our 29er mountain bikes. And based on many years of riding the Camino, 29er is still my top choice today!

Flat Bars vs. Drop Bars: The Real Estate Debate

Bikepacking is all about where you put your stuff. Gravel bikes with drop bars have limited space between the hoods for a handlebar bag. You often have to choose between gear and your hand positions.

Flat bars on an MTB give you massive amounts of "real estate." You can mount a huge dry bag, your GPS, a light, and even a snack pouch without it feeling cramped. Plus, the upright riding position gives you a much better view of the stunning landscapes: and the goats. You’ll see a lot of goats.

BUT: here I do concede, the ability to shift your hands from bar to hoods is definitely a plus on longer rides!

The Versatility of the Modern 29er

Wait, what about speed? I hear you. "But Martin, aren't MTBs slow on the road?"

Maybe 15 years ago. Modern 29ers with fast-rolling tires are surprisingly efficient - plus, when you’re loaded with gear, you’re not going to be breaking any land speed records anyway.

I still think the minor loss in aerodynamic efficiency on the road is a very small price to pay for the massive gain in comfort and capability once the pavement ends...

If you’re still worried about efficiency, you might even consider an electric bike for touring. It gives you the best of both worlds: the capability of an MTB with the "legs" of a pro.

Why Renting Beats Bringing Your Own

I get it: you love your bike. But flying with a bike box is a nightmare. It’s expensive, stressful, and there’s a 50% chance your derailleur will arrive looking like a pretzel.

When you opt for bike rent in Portugal or bike rental in Spain through us, you get a professionally maintained, high-spec 29er delivered right to your start point. We handle the logistics so you can focus on the riding. We even provide the accessories you need to make the trip a success.

The Verdict

If your route is 80% paved or hard-pack gravel, the gravel bike is a joy and the big winner. But how many adventures actually stay on the smooth path?

The 29er hardtail is the "SUV" of the bike world. It’s comfortable, it’s stable, it climbs like a goat, and it doesn't care if the trail gets ugly. In the unpredictable, beautiful, and sometimes brutal terrain of the Iberian Peninsula, the MTB isn't just a choice: it's the smart choice IMO!

Ready to test the theory? Grab one of our hardtail mountain bikes and see for yourself why I'm so biased toward the big wheels.

Ready to Roll?

At Cycling Rentals, we’re cyclists first. We’ve ridden these trails, we’ve climbed these mountains, and we’ve definitely sat at the bar at the end of the day comparing notes. We provide the gear we’d ride ourselves.

Whether you're tackling the Camino Portugues or exploring the hidden corners of the Alentejo, we have the right bike for you. No stress, no mechanical headaches: just you and the road (or the trail).

Book your bike now and let’s get your adventure started.

Don't Miss

• My Complete Guide to Bike Touring Portugal: What I Wish I’d Known Before My First Trip
• E-bike Touring: The Ultimate Guide to Bikepacking on Electric Bikes
• Choosing the Right Gear: Our Guide to Bicycle Accessories