From the original gear guide. Product claims, ratings and field notes below retain their source wording; they do not represent new testing or verified certifications. Confirm current details with the retailer.
The problem
Without the right tools, minor bike issues can end your adventure prematurely, forcing long walks or risky improvisations.
The solution
The Crankbrothers M17 Multi-Tool is designed to keep you rolling with a comprehensive, ergonomic toolkit that fits comfortably in your pack, ready for swift trail-side repairs.
First impressions
- Unboxing
A compact, well-packaged tool feels sturdy and thoughtfully assembled right out of the box.
- Surprises
The ergonomic side grips stand out, delivering a confident hold even over gloves or sweaty hands.
- Build Quality
High tensile chromium-molybdenum steel provides a robust, durable feel without excess weight.
A closer look
The full story
Out on the trail, a sudden click or loose bolt can transform a smooth ride into a frustrating ordeal.
When the trail roughens beneath your tires and precision is non-negotiable, the Crankbrothers M17 Multi-Tool emerges as an indispensable ally. Crafted with chromium-molybdenum steel and designed to fit snugly in your palm, this tool balances compactness with an impressive arsenal of functions. Imagine yourself deep in the backcountry, dirt on your hands and gloves gripped tight, effortlessly adjusting hex wrenches from 2 to 8mm or tightening a stubborn spoke with just a flick of the wrist. The ergonomic side grips ensure control under the toughest conditions, even when gloves are layered for protection against the cold or dust. No need to fumble—the integrated chain tool supports 8 to 12-speed drivetrains, ready to tame any chain hiccup as your ride unfolds. Sized at a sleek 89mm, the tool’s slim profile slides neatly into your pack or jersey pocket without weighing you down; at just 168 grams, it’s a mountain-ready essential. The M17 isn't merely a tool; it’s a promise of reliable performance accompanied by a lifetime warranty, underscoring the brand’s confidence in enduring quality. Whether you’re tackling urban trails or alpine descents, the versatility packed into this single device covers everything from spoke adjustments to quick screw tightening with Philips and flat #2 drivers or even Torx T-27 bolts. The open wrenches for 8mm and 10mm fasteners round out a toolkit built for precision and speed. For riders who demand seamless trail-side repairs without the bulk, the Crankbrothers M17 Multi-Tool offers an elegant balance of ergonomic design and rugged functionality. It’s a compact powerhouse that respects the rhythm and unpredictability of adventure, ready at a moment’s notice to keep you rolling.
The verdict
- Skip If
You require a tool for heavy-duty mechanical work beyond bike repairs
You prefer minimalist tools with fewer features
- Best For
Mountain and road bikers needing a reliable, lightweight multi-tool
Riders seeking quick trail repairs with a full range of functions
Cyclists who wear gloves and want ergonomic tool handling
- Original rating (as supplied)
4.5/5
- Worth The Price
Yes
- Would We Buy Again
Yes
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Product details
- Brand
Crankbrothers
- Sizes
One size
- Colors
Nickel
- Warranty
Lifetime warranty against defects and workmanship
- Where To Find
Online retailers including Amazon, specialty cycling shops
- Official Name
Crankbrothers M17 Multi-Tool
Product facts
- Weight
168 grams
- Best For
Trail-side bike repairs
Compact tool kit needs
Mountain biking
Road cycling maintenance
- Model Name
M17 Multi-Tool
- Key Features
Hex wrenches #2, 2.5, 3, 4, 5, 6, 8
Open wrench 8mm and 10mm
Spoke wrenches #0, 1, 2, 3
Philips #2 and flat #2 screwdrivers
Torx T-27 driver
Chain tool compatible with 8 to 12 speed chains
Ergonomic side grips for secure hold
Compact 89mm length
Lifetime warranty
- Not Ideal For
Non-cycling tool needs
Heavy industrial repair
Performance & field notes
Performance notes
- Original rating (as supplied)
9
- Details
Chromium-molybdenum steel withstands trail wear with no bending or fatigue after multiple uses.
- Category
Durability
- Compared To
Stronger and more wear-resistant than typical alloy multi-tools.
- Original rating (as supplied)
8
- Details
Side grips allow secure handling, but the compact size can feel small for very large hands.
- Category
Comfort
- Compared To
More ergonomic than many flat multi-tools lacking grip features.
- Original rating (as supplied)
9
- Details
A comprehensive set of wrenches, spoke tools, screwdrivers, and chain breaker covers nearly all common bike repairs.
- Category
Functionality
- Compared To
More versatile than basic 6- or 8-tool multi-tools.
- Original rating (as supplied)
10
- Details
Slim profile and lightweight design make it easy to carry on long rides without bulk.
- Category
Portability
- Compared To
More compact than many traditional multi-tools while offering more tools.
Expert perspective
- Quote
The Crankbrothers M17 delivers a rare balance of portability and comprehensive functionality. It’s more than a tool; it’s peace of mind on every ride.
- Expert Name
Eric Crews, founder of The Adventure Collective
- Expert Title
Founder and Outdoor Gear Expert
Field notes from the original guide
- Mileage
50 miles over varied terrain
- Location
Moab, Utah
- Conditions
Dry, dusty, with early morning chill
- Review Summary
The M17 proved indispensable on a long desert ride, tackling everything from loose spokes to chain tweaks without fuss, fitting comfortably in the jersey pocket throughout the day.
Fit & buying advice
Buying decision guide
- Then
This tool is great for expanding your repair kit with an easy-to-use, versatile multi-tool.
- If You
are a beginner hiker
- Alternative
But consider a simpler multi-tool with fewer functions if you're just starting and want to learn basics first.
Designed for
- Terrain Type
Mountain trails
Gravel paths
Urban roads
- Trip Duration
Half-day to multi-day rides
- User Skill Level
Intermediate
- Weather Conditions
Dry
Wet
Cold weather with gloves
Buying advice
- Fit Tip
Check compatibility with your bike’s drivetrain and spoke sizes to maximize tool use.
- Break In Tip
Minimal break-in needed; metal interfaces fit well from the start.
- Sizing Notes
Compact size makes it highly portable but confirm it suits your hand size for grip comfort.
- Value Summary
While less bulky than many full-size kits, the M17 offers professional-level tools backed by a lifetime warranty, representing solid investment for serious riders.
Care, brand & sustainability
About the brand
- Brand Name
Crankbrothers
- Brand Focus
Innovative cycling components and tools designed for riders who demand reliability and performance.
Care & ownership
- Resale Value
Holds value well due to brand reputation and durable design.
- Repairability
Parts are integrated; repair is generally not needed. Replacement tools available from brand if lost.
- Maintenance Required
Occasional cleaning and lubrication of moving parts will keep it functioning smoothly.
- Durability Expectation
Designed to last many years under regular trail conditions with quality steel construction.
Sustainability notes
- Labor Practices
No specific publicly available information on labor practices.
- Brand Commitment
Crankbrothers emphasizes product longevity and quality, minimizing environmental footprint through durability.
- Environmental Impact
Made with durable materials intended for long life, reducing waste from frequent replacements.
Tips & companion gear
Companion products
- Why
Complements the M17 by providing a dedicated tool for pedal adjustments with solid leverage.
- Item
Crankbrothers Pedal Wrench
- Optional
No
- Why
Essential for quickly inflating tires after repairs or punctures, pairing well with on-the-go fixes.
- Item
Compact Hand Pump
- Optional
No
- Why
Provides a lightweight solution to repair tube punctures alongside the M17’s mechanical tools.
- Item
Patch Kit
- Optional
No
- Why
Enhances grip and protects hands when using tools in rough or cold conditions.
- Item
Cycling Gloves
- Optional
No
Pro tips
- Title
Carry This Tool For Quick Fixes
- Severity
essential
- Description
The M17’s wide range of wrenches and chain tool mean you won’t be stuck fixing common breakdowns on the go.
- Title
Test Your Tool Before Heading Out
- Severity
info
- Description
Practice using the hex keys and chain tool at home to familiarize yourself before trail emergencies.
- Title
Keep Your Tool Dry After Wet Rides
- Severity
warning
- Description
Wipe down and lightly oil the tool after exposure to water to prevent rust.
- Title
Store in an Accessible Spot
- Severity
essential
- Description
Carry the M17 in a jersey pocket or saddlebag for quick access during your ride.
Complete your kit
- Name
Crankbrothers Pedal Wrench
- Essential
No
- Description
Complements the M17 for pedal-specific adjustments with durable leverage.
- Name
Portable Tire Pump
- Essential
Yes
- Description
Essential for inflating tires after repairs or flats on the trail.
- Name
Compact Patch Kit
- Essential
Yes
- Description
A must-have for quick tire puncture repairs when air isn't enough.
- Name
Cycling Gloves
- Essential
Yes
- Description
Improve grip and hand protection during tool use and rides.
- Season Specific
summer
Summary & further reading
The short version
- Ideal Buyer
Cyclists who want a versatile, lightweight, and durable tool for quick trail maintenance.
- Deal Breakers
Not suitable for heavy industrial repairs
May feel small for very large hands
Specific to bicycle maintenance
- One Line Summary
A compact yet comprehensive multi-tool designed for reliable, ergonomic bike repairs on the trail.
Explore the product
Shop the Crankbrothers M17 Multi-Tool Now
More from the guide
Buy the M17 Multi-Tool for Reliable Trail Repairs
Closing thoughts
Be Ready for Anything on the Trail
Compact, ergonomic, and lifetime backed – the M17 is your ultimate bike repair kit
Original call to action
Get Your Crankbrothers M17 Multi-Tool Today
Further reading
How to Master Trail-Side Bike Maintenance: Essential Tools and Techniques | A comprehensive guide to basic repairs for mountain bikers, focusing on gear selection, including multi-tools like the Crankbrothers M17, patch kits, and pump essentials.
Before you buy
Questions & answers
Is the chain tool compatible with all bike chains?
The chain tool supports 8 to 12-speed chains, covering most modern bikes.
Can I use this tool while wearing gloves?
Yes, the ergonomic side grips are designed to provide secure handling even with gloves on.
Does the tool include a Torx driver?
It includes a Torx T-27 driver suitable for common bike bolts.
What warranty does Crankbrothers offer?
The M17 comes with a lifetime warranty against defects and workmanship.