For riders, a compact, reliable bike multi tool with a built-in chain breaker is essential for trailside fixes and quick adjustments. The tools below are all designed to help you handle common on-the-road or on-trail issues without carrying a full workshop. Each option combines a robust chain breaker with a selection of hex keys, screwdrivers, and other handy bits to cover most maintenance needs. The list focuses on models that balance weight, durability, and practical chain-breaking capability for road and mountain bikes alike.
| Product | Brand | Key Features |
|---|---|---|
| Crankbrothers M19 Matte Black | Crankbrothers | Includes hex wrenches (2, 2.5, 3, 4, 5, 6, 8), open wrenches (8mm, 10mm), spoke wrenches (0–3), screwdrivers (Philips #1 & #2, flat #2), Torx (T-10, T-26), chain tool compatible with 8–12 speeds; ergonomic side grips |
| CECO-USA 17 Function Tool With Chain Breaker | CECO | 17 functions, chain breaker, hex (2–8mm), Phillips #2, Slotted #5, Torx T25, spoke wrench (13–16), Mavic spline, bottle opener; ultra slim profile |
| Crankbrothers M17 Gold | Crankbrothers | Hex wrenches (2, 2.5, 3, 4, 5, 6, 8), open wrenches (8mm, 10mm), spoke wrenches (0–3), screwdrivers (Philips #2, flat #2), Torx (T-25), chain tool compatible with 8–12 speeds; ergonomic grip |
| CECO-USA 13 Function Tool With Chain Breaker | CECO | 13 functions, chain breaker, hex (2–8mm), Phillips #2, Slotted #5, Torx T25, spoke wrench (14, 15), chain breaker (8–11 speeds); ultra slim body and lever for easier chain breaking |
| LEZYNE Multi-Chain Pliers With Chain Breaker | LEZYNE | Chain link removal integrated with chain breaker, valve core wrench, all-in-one chain tool; compact and durable |
Crankbrothers M19 Matte Black Multi Tool
The Crankbrothers M19 is a dense, full-feature kit designed for serious riders who want a single tool that can handle multiple repair scenarios. Its chain tool supports a wide range of speeds (8–12), making it compatible with most modern drivetrains. The tool set includes a comprehensive selection of hex wrenches and screwdrivers, plus Torx bits for quick access to common components on both road and mountain bikes. Ergonomic side grips help you maintain a secure hold, even when wearing gloves, reducing hand fatigue on longer rides.
- Hex Wrenches: #2, 2.5, 3, 4, 5, 6, 8
- Open Wrenches: 8mm, 10mm
- Spoke Wrenches: #0, #1, #2, #3
- Screwdrivers: Philips #1 & #2, Flat #2
- Torx Bits: T-10, T-26
- Chain Tool: 8/9/10/11/12-speed compatible
Designed with ergonomic confidence, the M19 combines durability with glove-friendly handling, making it a go-to choice for riders who value reliability and breadth of functions in a compact form. Its dense tool set is ideal for riders who frequently service a variety of components beyond chain maintenance.
CECO-USA 17 Function Chain Breaker Tool
CECO’s 17-function tool prioritizes portability without sacrificing capability. Its ultra-slim 0.4-inch profile makes it easy to carry in jersey pockets or saddlebags, while hardened CR-V 6150 tool steel and aluminum side bars deliver lasting durability. The tool is CNC-machined for precise fits into screw openings, ensuring secure engagement and reducing slip during use. With a full assortment of hex bits, screwdrivers, Torx, a chain breaker compatible with multiple speeds, and even a bottle opener, this tool covers a broad spectrum of roadside repairs.
- Hex Bits: 2–2.5–3–4–5–6–8 mm
- Phillips: #2; Slotted: #5
- Torx: T25; Spoke Wrench: 13–16
- Chain Breaker: 7–11 speeds
- Includes Mavic Spline and Bottle Opener
The ultra-slim design is a standout feature for riders who want a robust tool that rides discreetly in a pocket or small pouch. The chain breaker is engineered for controlled leverage, helping users avoid slippage and damage when breaking chains on the trail or road.
Crankbrothers M17 Gold
The Crankbrothers M17 Gold offers a slightly leaner configuration compared to the M19 but retains the essential chain tool functionality for 8–12-speed systems. The tool pack includes a comprehensive set of hex wrenches, screwdrivers, and Torx bits, along with ergonomic side grips that help preserve control during field repairs. The M17 is a practical choice for riders who want a high-quality, lighter option without sacrificing relevant maintenance functions.
- Hex Wrenches: 2, 2.5, 3, 4, 5, 6, 8
- Open Wrenches: 8mm, 10mm
- Spoke Wrenches: 0–3
- Screwdrivers: Philips #2; Flat #2
- Torx: T-25; Chain Tool: 8–12 speed
- Ergonomic Side Grips
With a robust construction and a focus on essential multitool features, the M17 Gold is well-suited for riders who want dependable performance in a compact gold-toned package designed for frequent field adjustments.
CECO-USA 13 Function Chain Breaker Tool
CECO’s 13-function tool emphasizes compactness and ease of use, featuring a chain breaker and a selection of hex bits (2–8 mm), alongside screwdrivers, and a dedicated chain breaker capable of handling multiple speeds. The tool is engineered from hardened CR-V 6150 steel with aluminum side bars for improved durability and lightness. The built-in lever on the chain breaker enhances leverage, making it simpler to separate chain links in tight spots or on uneven terrain.
- Hex Bits: 2–2.5–3–4–5–6–8 mm
- Phillips: #2; Slotted: #5
- Torx: T25; Spoke Wrench: 14–15
- Chain Breaker: 8–11 speeds
- Ultra Slim Profile: 0.45 inch
For riders who want a slim, dependable toolkit for quick adjustments and chain maintenance, this CECO option provides a strong balance of features in a smaller footprint, making it a reliable companion on longer trips or daily commutes.
LEZYNE Multi-Chain Pliers With Chain Breaker
LEZYNE’s multi-chain pliers combine chain link removal with a built-in chain breaker, offering an all-in-one solution for chain maintenance. The integrated valve core wrench and link storage add practical value, especially for riders who want a single tool to manage both chain repair and loose accessory management on the go. While slightly heavier than ultra-slim options, the added capabilities can reduce the need for multiple tools during a ride or race.
- Chain Link Removal Integrated With Chain Breaker
- Valve Core Wrench Included
- Link Storage for Quick Access
- All-in-One Bike Chain Tool
This tool is particularly useful for riders who anticipate frequent chain adjustments and prefer a compact tool that consolidates chain and valve-related tasks in one unit.
Buying Guide
Choosing the right bike multi tool with a chain breaker depends on your riding style, maintenance needs, and the setups you encounter. Start by evaluating chain breaker compatibility: most modern tools support 8–11 or 12-speed chains, but confirm compatibility for your drivetrain. If you frequently service complex components or ride mountain terrain, a tool with a broader set of hex keys and Torx bits can save time and reduce gear swaps on the trail.
Weight and footprint matter for riders who carry tools in pockets, packs, or saddle bags. Ultra-slim designs are excellent for minimalists, but they may trade off some functions or heft. In contrast, higher-function models (such as 17 or 19 functions) offer more capabilities at the cost of added weight and bulk. Consider your typical repair scenarios: chain work, derailleur adjustments, wheel maintenance, or quick lube tasks. Choose a model whose included bits align with the tasks you perform most often.
Durability is another key factor. Tools built with hardened steel (CR-V 6150, for example) and sturdy side bars resist wear over time. Ergonomics matter too: side grips or textured handles improve control, especially when fingers are cold or gloves are worn. If space is at a premium, a slim profile with easy access to the most-used bits can streamline repairs. Finally, consider brand reliability and warranty coverage, as this can influence long-term performance and replacement parts availability.
For road cyclists and mountain bikers alike, having a chain breaker integrated into a multitool reduces the need for separate devices and helps keep you moving. Evaluate the trade-offs between models with extensive function sets versus those optimized for compactness, and choose the option that best fits your typical ride, maintenance habits, and favorite terrain.