SURLY Karate Monkey – Hardtail MTB for Trail & Bikepacking

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The Karate Monkey is one of the most iconic bicycles Surly has ever created.

Not because it is the lightest, the most extreme or the most specialised.

But because, for more than twenty years, it has continued to demonstrate a rare quality: it adapts to its owner's evolving projects without ever losing its own identity.

It was one of the very first production mountain bikes built around 29" wheels, helping establish what has since become the industry standard. Since then it has evolved alongside modern trail riding while staying true to the same philosophy: a simple, durable and genuinely enjoyable platform designed to accompany its rider for many years.

Today, the Karate Monkey is a modern steel hardtail that can serve as a trail bike, a dedicated bikepacking rig, an expedition platform, a rigid mountain bike or the starting point for an entirely custom build.

What makes it different

Many bikes are purchased with the next bike already in mind.

The Karate Monkey usually stays.

Because it grows alongside its owner.

It may begin life as a rigid steel hardtail and, over the years, receive a 140 mm suspension fork, a more advanced dropper post, new wheels, a different drivetrain or an entirely new configuration.

The frame continues to make sense even as your riding evolves.

Compatibility with both 27.5+ and 29" wheels, the Gnot-Boost rear end, generous tyre clearance, a suspension-corrected fork, numerous cargo mounts and balanced geometry make the Karate Monkey a platform designed to outlive any single build.

The community bike

Few Surly frames have been interpreted by their owners as creatively as the Karate Monkey.

And that is exactly where its appeal lies.

None of these bicycles truly resembles the stock build.

And yet every one of them is instantly recognisable as a Karate Monkey.

That probably says more about the quality of the original design than any marketing slogan ever could.

How it rides

The Karate Monkey delivers a very distinctive riding experience.

The steel frame retains the natural compliance that has made the best steel hardtails so highly regarded, while the modern geometry inspires confidence whenever the trail becomes more technical.

The 27.5 × 3.0" tyres increase comfort, traction and control over rough terrain without making the bike feel sluggish or dull.

The result is a mountain bike that constantly encourages you to search for new lines, new trails and longer adventures.

When it makes sense

The Karate Monkey is an excellent choice if you're looking for a bike for:

When you might prefer something else

If your riding focuses almost entirely on expedition touring with heavy loads, the Ogre has a stronger utility-oriented character.

If you want 29 × 3.0" tyres and even greater stability on the roughest terrain, the Krampus is the natural next step.

If you want to tackle similar routes while making a drop handlebar the defining element of the bike, the Grappler was designed specifically for that purpose.

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