Crankbrothers M19 Multi Tool Review

Last Updated January 23, 2024

As an outdoor enthusiast with a passion for hiking, camping, RVing, and particularly cycling, I’ve always been on the lookout for gear that not only enhances my experience but also provides practicality and reliability. Enter the Crankbrothers M19 Multi-Tool, a device that has sparked interest among many adventurers like myself. In this comprehensive review, I will delve into the various aspects of the M19, drawing from my own experiences and knowledge gathered from credible sources.

Designed for those who demand versatility and durability in their tools, the M19 has made a name for itself in the outdoor community. From its robust construction and versatile toolset to its performance in diverse environments, this review aims to provide an in-depth look at what the M19 offers. I will also compare it with other popular multi-tools on the market, discuss its pros and cons, and answer some frequently asked questions, giving you a well-rounded perspective on its suitability for your outdoor adventures.

Join me as I explore the features, usability, and overall value of the Crankbrothers M19 Multi-Tool, and see if it’s the right fit for your outdoor toolkit.

Crankbrothers M19 Multi Tool

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Robust Design and Quality

As someone who’s been an avid user of the Crankbrothers M19 Multi-Tool for years, I can vouch for its remarkable design and quality. This tool has been a reliable companion during my outdoor adventures, from hiking trails to bikepacking journeys. Here’s a deeper look at what makes the M19 stand out.

Sturdy Construction: The M19 is constructed from high-tensile steel, ensuring durability and strength. The tool feels solid and reliable in the hand, which is a testament to its robust build. This quality construction means that it can withstand the rigors of outdoor use, a crucial aspect for tools that are often subjected to tough conditions.

Thoughtful Design: The design of the M19 is both practical and user-friendly. It features knurled steel sides which provide a better grip, especially useful when working with gloves or in wet conditions. Despite its comprehensive range of functions, the M19 manages to maintain a slim profile, making it easy to pack and carry around. Its dimensions (89mm long by 45mm wide, and about 20mm thick when folded) and weight (173 grams) strike a good balance between portability and functionality.

Wide Range of Tools: With 19 functions, the M19 covers almost all needs for trailside repairs. It includes a variety of hex keys (2, 2.5, 3, 4, 5, 6, and 8mm), wrenches (8 and 10mm), Phillips and flat head screwdrivers, spoke wrenches, and T10 and T25 Torx keys. The newer versions of the M19 also feature a chain tool compatible with 8-12 speed chains. This comprehensive set of tools has repeatedly proven to be invaluable for addressing various mechanical needs while on the go.

Durability and Longevity: One of the most impressive aspects of the M19 is its longevity. My personal experience, along with reviews from other long-term users, confirms that this tool can last for many years without significant wear or tear. Even after extended use in various weather conditions, the M19 continues to perform reliably.

A Minor Compromise: While the M19 isn’t the lightest multi-tool on the market, its slightly heavier weight is a small trade-off for the quality and range of tools it offers. For those who prioritize durability and a comprehensive toolset, this additional weight is hardly a concern.

In my experience, the Crankbrothers M19 Multi-Tool stands out for its solid construction, thoughtful design, and wide range of useful tools. It’s a tool that doesn’t just perform its duties; it does so with a reliability and robustness that instills confidence in any outdoor enthusiast. While there are lighter options available, the M19’s blend of durability, functionality, and design makes it a top choice for anyone serious about their outdoor gear.

Crankbrothers M19 Multi Tool Open

Versatility at Your Fingertips

From my first-hand experience and extensive usage of the Crankbrothers M19 Multi-Tool, its versatility is not just a selling point but a practical reality that has been crucial in many of my outdoor adventures. Let me break down the diverse functionalities of this tool that have made it an indispensable part of my gear.

Comprehensive Tool Selection: The M19’s array of tools is thoughtfully chosen, catering to a wide range of needs. Here’s a closer look at what it offers:

  • Hex Keys/Wrenches: The tool includes 2, 2.5, 3, 4, 5, 6, and 8mm sizes. I’ve used these hex keys more times than I can count, from adjusting bike seats to tightening bolts on camping gear.
  • Screwdrivers: It comes with a flat screwdriver and two Phillips screwdrivers. These have been handy for quick fixes, like tightening a loose screw on my sunglasses or adjusting my headlamp.
  • Open Wrenches: The 8mm and 10mm open wrenches have been great for dealing with larger bolts, which is not always common in multi-tools but definitely a plus.
  • Spoke Wrenches: As someone who enjoys biking, having four spoke wrench sizes (0, 1, 2, 3) has been invaluable for wheel adjustments and emergency fixes.
  • Chain Tool: Compatible with 8/9/10 speed chains, this tool has saved me on multiple occasions when dealing with a slipped or broken bike chain.
  • Torx Keys: The inclusion of T-10 and T-25 Torx keys is a nod to modern bike standards and adds another layer of versatility.

Real-World Usability: Each tool in the M19 is designed to be practical and easy to use. The length and leverage of the tools are well-thought-out, making it easier to reach tight spaces or apply more torque. This has been particularly noticeable when I had to apply extra force to loosen a stubborn bolt or reach an awkwardly positioned screw.

Durability Meets Functionality: In addition to its comprehensive toolset, the M19’s durability enhances its versatility. It’s robust enough to handle demanding tasks without showing signs of wear or damage. This durability means I can rely on it in various environments, whether it’s a dusty trail or a humid forest.

Portability: Despite its broad range of tools, the M19 maintains a compact and portable design. Its foldable nature and the slim profile allow it to fit easily into a small pocket in my backpack, a bike saddlebag, or even a car glove compartment. This portability has made it a constant companion on my trips, ensuring I’m always prepared.

In my experience, the Crankbrothers M19 Multi-Tool is much more than a convenience; it’s a necessity for anyone who loves the outdoors. Its wide array of tools, combined with its ease of use and durability, makes it an outstanding choice for a range of activities. Whether it’s a quick fix or a more complex repair, the M19 has proven to be up to the task, time and time again.

The Case: Practical but with a Caveat

In my time using the Crankbrothers M19 Multi-Tool, I’ve found its case to be a topic of mixed feelings. On the one hand, the case is practical and adds value to the tool, but on the other hand, it has a significant drawback that I’ve come to notice. Let me delve deeper into my experience with the case of the M19.

The Good: Protection and Durability: The metal case of the M19 is a solid protector. It’s hardy and effectively shields the tool from external elements, ensuring the longevity of the tool itself. I’ve tossed it into my backpack on countless treks and bike rides, and the case has reliably safeguarded the tool against dust, dirt, and moisture. The case is also sleek and has a professional look, which I appreciate.

The Caveat: Usability Concerns: However, the practicality of the case does have its limits. The primary issue I’ve encountered is with the case’s design in terms of user-friendliness. It can be quite cumbersome to open, especially when you’re in a hurry or wearing gloves. This aspect can be a bit frustrating, particularly in situations where quick access to the tool is necessary.

My Solution: DIY and Alternative Options: To address this, I’ve experimented with a couple of solutions. One is a simple DIY fix where I wrap the tool in a small cloth and store it in a heavy-duty ziplock bag. This homemade solution is surprisingly effective in keeping the tool dry and rust-free, plus it makes access much easier.

For those looking for a more elegant solution, there are aftermarket cases available that are designed to hold multi-tools like the M19. These cases often feature better accessibility and are lighter, making them a practical alternative to the original case.

The Verdict: While the case of the Crankbrothers M19 Multi-Tool is robust and adds a layer of protection, its design could be more user-friendly. Depending on your personal preferences and how you plan to use the tool, you might find that modifying the storage solution, or replacing the case altogether, enhances the overall experience of using the M19.

While the case has its advantages in terms of protection and durability, its practicality is somewhat hindered by accessibility issues. However, with some creative thinking or the use of alternative cases, the M19 still remains an excellent tool for any outdoor enthusiast.

Enduring Performance in Varied Environments

In my diverse outdoor adventures, the Crankbrothers M19 Multi-Tool has consistently proven its worth, showcasing exceptional performance in various environments. Here’s a closer look at how the M19 has stood the test of different conditions, based on my personal experiences and insights from various sources.

Resilience in Harsh Conditions: The M19 has accompanied me through a myriad of environments, from the humid and muddy trails of the rainforest to the dry and dusty paths of the desert. Its high-tensile steel construction ensures that it withstands these extreme conditions without any compromise in functionality. I’ve found that the tool does not succumb to rust or corrosion easily, a testament to its durable build quality.

Adaptability to Temperature Variations: Whether it’s been in the freezing temperatures of high-altitude treks or the sweltering heat of summer hikes, the M19 has maintained its integrity. The materials used in its construction seem to be unaffected by temperature fluctuations, which is crucial for any tool meant for outdoor use. Its reliable performance, regardless of the ambient temperature, has been a significant factor in my outdoor excursions.

Grip and Usability in All Weather: One aspect of the M19 that stands out is its textured grips. These have been incredibly useful in wet conditions or when I’m wearing gloves. The grip allows for a secure hold, ensuring that I can use the tool effectively without it slipping, even in slippery or damp conditions. This feature has been particularly beneficial during unexpected bike repairs in the rain or adjustments to camping gear in moist environments.

Protection Against the Elements: While the tool itself is robust, the protective case it comes with plays a significant role in its endurance. The case shields the tool from dirt, mud, and water, further extending its lifespan and maintaining its condition. As I’ve mentioned before, while the case is not perfect in terms of ease of access, its protective qualities are undeniable.

Crankbrothers M19 Multi Tool Closed

My Personal Experience

Over the years, the Crankbrothers M19 Multi-Tool has been a constant in my outdoor escapades, earning its place as a must-have in my kit. Let me share some of the experiences and scenarios where the M19 has been more than just a tool, but a reliable partner in the great outdoors.

On the Trails: As an avid mountain biker, the M19 has seen its fair share of trails. I remember this one time when I was deep in the woods, and my bike’s chain decided to give up. With no bike shop in sight, the M19’s chain tool was a lifesaver. Its compatibility with various chain speeds and the leverage it provided made the fix smooth and swift, allowing me to continue my ride without much delay.

During Camping Trips: The M19 isn’t just for biking. On numerous camping trips, it has proven its worth beyond bike repairs. Once, while setting up camp, I needed to tighten some bolts on my tent frame. The hex keys on the M19 came in handy, fitting perfectly and giving me the torque needed. Its versatility means I don’t have to carry a separate set of tools for such tasks.

In Unexpected Situations: The true test of any multi-tool is how it performs in unforeseen circumstances. I recall a time during an RV trip when a loose screw on the RV door needed immediate attention. The Phillips screwdrivers on the M19 were just the right size, and the tool’s sturdy grip made the job easy, even in the cramped space.

Longevity and Reliability: After years of use, what impresses me most about the M19 is its durability. Despite being exposed to different weather conditions and frequent use, it shows minimal signs of wear. The tools haven’t loosened, and the steel hasn’t rusted, which speaks volumes about its build quality.

The Case: A Double-Edged Sword: While I’ve praised the tool itself, I have mixed feelings about its case. Its protective nature is a big plus, but the difficulty in opening it quickly can be a bit of a hassle, especially in urgent situations. However, this is a small trade-off for the overall utility and reliability of the tool.

In sum, the Crankbrothers M19 Multi-Tool has been an indispensable part of my outdoor adventures. Its range of functions, coupled with its durability and ease of use, makes it a top recommendation for anyone engaged in outdoor activities, be it biking, camping, or RVing. The M19 isn’t just a tool; it’s a companion that has enhanced my experiences in the great outdoors.

Comparison: Crankbrothers M19 vs. Other Popular Multi-Tools

Having used the Crankbrothers M19 extensively, I recently explored how it stacks up against other popular multi-tools in the market. Here’s my detailed comparison based on personal experience and insights from sources like Outdoor Life​​ and Field & Stream​​. You’ll probably like our best cycling multi tool guide as well as this comparison.

Crankbrothers M19 vs. Leatherman Wave Plus

Leatherman Wave

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Leatherman Wave+:

  • Number of Tools: 18, including pliers, wire cutters, scissors, and blades.
  • Features: External access to blades and saws, proprietary bit driver.
  • Pros: Quick access to tools, made in the USA.
  • Cons: Lacks a pocket clip, proprietary bit design can be limiting.
  • My Take: The Leatherman Wave Plus is a great tool with a more conventional design. Its quick access to tools is a definite plus, but the proprietary bits could be a limitation for some.

Crankbrothers M19 vs. Leatherman Wingman

Leatherman Wingman Multi Tool

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Leatherman Wingman:

  • Weight: 6.88 lbs.
  • Number of Tools: 14.
  • Pros: Spring-loaded pliers, accessible knife, good value.
  • Cons: Some tools can be awkward to use.
  • My Take: The Wingman is more compact and lighter than the M19. It’s a great everyday carry option with essential tools like a knife and pliers. The M19, however, offers more specialized tools for biking.

Crankbrothers M19 vs. Topeak Mini PT30

Topeak Mini PT30 Multi Tool

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Topeak Mini PT30:

  • Weight: 9.92 oz.
  • Number of Tools: 30.
  • Pros: Mountable under a water bottle cage, waterproof toolbox, more functions.
  • Cons: Case attachment can be tricky.
  • My Take: The Topeak model is a more bike-specific tool compared to the M19. It offers a greater variety of functions and a handy carrying case, making it a strong contender for dedicated cyclists.

Crankbrothers M19 vs. Swiss Army Huntsman

Victorinox Huntsman Multi Tool

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Swiss Army Huntsman:

  • Weight: 3.42 oz.
  • Number of Tools: 15.
  • Pros: Compact size, durable, easy to sharpen blades.
  • Cons: Lower quality carrying case.
  • My Take: The Huntsman is significantly lighter and more compact than the M19. It’s an iconic tool with excellent functionality but lacks the specialized bike tools that the M19 offers.

The Crankbrothers M19 stands out for its solid build and cycling-specific tools, making it ideal for biking enthusiasts. However, if you’re looking for a lighter everyday carry or a more diverse range of functions, options like the Leatherman Wingman or the Topeak Ninja Master might be more suitable. Each tool has its unique strengths, and the best choice depends on your specific needs and activities.

Pros & Cons of the Crankbrothers M19 Multi-Tool

Having used the Crankbrothers M19 Multi-Tool extensively in various outdoor scenarios, I’ve come to identify several key pros and cons that might be helpful for anyone considering this tool.


  • Versatile Tool Range: The M19 packs 19 functions, making it incredibly versatile for a range of tasks, especially handy for bike repairs.
  • Solid Construction: Made of high-tensile steel, the tool is robust and durable, capable of withstanding rough use and various weather conditions.
  • Compact Design: Despite its range of functions, the M19 maintains a slim profile, making it easy to carry in a backpack, saddlebag, or even a pocket.
  • Ergonomic Grip: The knurled sides provide a solid grip, which is especially useful in wet conditions or when wearing gloves.
  • Chain Tool Compatibility: The chain tool is compatible with 8-12 speed chains, which is a big plus for cyclists.
  • Longevity: My M19 has shown minimal signs of wear over years of use, affirming its longevity and reliability.
  • Outdoor Suitability: Its performance in various environments, from wet conditions to extreme temperatures, makes it an excellent outdoor tool.


  • Weight: At 175 grams, it’s a bit heavier than some of its competitors, which might be a concern for those prioritizing weight.
  • Case Design: The metal case, while protective, can be cumbersome and difficult to open, especially in a hurry or with gloves on.
  • Price: The M19 is a bit more expensive compared to some other multi-tools, which might be a consideration for budget-conscious buyers.
  • No Self-Tightening Feature: This means that some maintenance is required to keep the tool in optimal condition.
  • Limited Corrosion Resistance: While robust, the tool and its case aren’t completely corrosion-resistant, necessitating proper storage.
  • Lack of a Wrench for Larger Bolts: While it covers most sizes, the M19 might not be suitable for larger bolts, limiting its use in some scenarios.

The Crankbrothers M19 is a solid, versatile tool that’s particularly suited for cycling enthusiasts and outdoor adventurers. Its robust build and range of tools make it a reliable companion, despite its weight and the less user-friendly case design.

FAQs on Crankbrothers M19 Multi-Tool

What are the specific tools included in the Crankbrothers M19 Multi-Tool?

The M19 includes hex keys (2, 2.5, 3, 4, 5, 6, 8mm), Phillips and flat screwdrivers, a chain tool, spoke wrenches, open wrenches (8mm, 10mm), and Torx keys (T-10, T-25).

What Makes the Crankbrothers M19 Multi-Tool Suitable for Outdoor Activities?

The M19’s durable high-tensile steel construction and versatile range of 19 tools make it highly suitable for outdoor activities, especially cycling. It is designed to withstand rough usage and various environmental conditions, making it ideal for biking, camping, hiking, and more.

How Heavy is the Crankbrothers M19 Multi-Tool?

The M19 weighs around 175 grams. While this makes it slightly heavier than some multi-tools, the weight is a trade-off for its robust construction and the range of tools it offers.

Is the Crankbrothers M19 Multi-Tool Easy to Carry?

Yes, despite its comprehensive toolset, the M19 is designed to be compact and slim, making it easy to carry in a pocket, backpack, or bike saddlebag.

Can the M19 Multi-Tool Be Used in Wet Conditions?

Absolutely. The M19 features knurled steel sides for an improved grip, making it usable in wet conditions and even with gloves on.

Is the Crankbrothers M19 Multi-Tool Corrosion Resistant?

The M19 is built to be durable, but it is not fully corrosion-resistant. Proper storage, especially using its protective case, is recommended to maintain its condition.

Does the M19 Multi-Tool Have a Chain Tool?

Yes, it includes a chain tool compatible with 8-12 speed chains, making it a valuable tool for cyclists.

What Are the Cons of the Crankbrothers M19 Multi-Tool?

Some of the cons include its weight, the slightly cumbersome case design, and the price point, which is a bit higher compared to some other multi-tools.

How Does the M19 Compare to Other Multi-Tools Like Leatherman?

The M19 is more bike-centric with its tool selection, particularly useful for cyclists. In comparison, Leatherman tools like the Wave Plus and Wingman offer more general utility and are lighter, but they may lack the specialized bike tools found in the M19.

Can the Crankbrothers M19 Multi-Tool Be Used for Home Repairs?

Yes, while it’s designed with outdoor activities in mind, its variety of hex keys, screwdrivers, and other tools make it suitable for basic home repairs and DIY tasks.

Is the M19 Multi-Tool Suitable for Professional Bike Mechanics?

The M19 is excellent for on-the-go repairs and casual use, but professional bike mechanics might require more specialized tools for complex bike repairs.

How Durable is the M19 Multi-Tool?

The M19 is known for its durability, thanks to its high-tensile steel construction. It withstands rough use and has a long lifespan with proper care.

Is the Price of the Crankbrothers M19 Multi-Tool Justifiable?

While the M19 is slightly more expensive than some alternatives, its durability, range of tools, and reliability often justify the price for those who need a robust, multi-functional tool, especially for outdoor and biking use.

Does the M19 Multi-Tool Come with a Warranty?

Yes, the Crankbrothers M19 typically comes with a warranty. It’s advisable to check the specific terms and conditions at the time of purchase.

A Company with a Heart

It’s worth mentioning that Crank Brothers not only focuses on quality products but also has a commitment to charity. They have raised significant funds for biking-related charities, enhancing their reputation as a company that cares.


In conclusion, the Crankbrothers M19 Multi-Tool stands as a remarkable tool for outdoor enthusiasts, particularly appealing to those with a keen interest in cycling. Its robust construction, diverse toolset, and reliability in various environments make it a valuable addition to any adventurer’s kit.

The Strong Points: The M19 shines in its sturdy build and range of tools, which includes hex keys, screwdrivers, a chain tool, and more, making it incredibly versatile. Its ergonomic design and durability are well-suited for challenging outdoor conditions. The tool’s compatibility with a range of chain speeds adds to its appeal for cyclists.

Points to Consider: However, it’s important to consider the M19’s weight and the design of its case, which can be cumbersome. The price point, slightly higher than some of its competitors, might also be a factor for budget-conscious consumers.

Personal Experience and Comparisons: Drawing from my personal experiences and comparisons with other multi-tools, the M19 stands out for its focus on cycling-specific functionalities. Its performance under various environmental conditions, coupled with its reliability over time, underscores its value despite some of its drawbacks like weight and cost.

Final Verdict: The Crankbrothers M19 is more than just a multi-tool; it’s a reliable companion for outdoor adventures. Whether you’re a seasoned cyclist, a camping enthusiast, or someone who enjoys the great outdoors, the M19’s combination of durability, functionality, and design makes it a worthwhile investment. While there are lighter and cheaper options available, few match the M19’s quality and suitability for outdoor activities.

For those who prioritize a specific set of tools, durability, and a tool that can handle the rigors of outdoor use, the Crankbrothers M19 is an excellent choice. It’s a testament to the saying, “You get what you pay for” – a reliable, versatile, and robust tool that can withstand the test of time and elements.

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