Crankbrothers M19 Multitool product guide
A compact steel multitool with a broad hex-key range, Torx bits and a chain tool listed for 8–12-speed chains.
At a glance
This is a desk-researched product guide based on the linked manufacturer and retailer information, not a claim that RideIn has hands-on tested this item. Verify the selected variant because specifications and bundles can change.
- Hex keys
- 2, 2.5, 3, 4, 5, 6 and 8 mm
- Torx
- T10 and T25
- Chain-tool range
- 8, 9, 10, 11 and 12-speed manufacturer listing
- Dimensions
- 89 × 45 × 19 mm
- Published weight
- 175 g
Where it fits into a cycling commute
The M19 is a practical alternative when you want a small metal folding tool with a published list of individual sizes. Its hex range covers several common bicycle fittings, while T10 and T25 bits broaden its usefulness for compatible components. Crankbrothers also lists a chain tool for 8–12-speed chains. Those details make it possible to check suitability before ordering, instead of relying on a promise that one tool covers every bicycle.
The most useful pre-ride exercise is to identify what the M19 will actually do on your commuter. Can the correct bit reach a loose rack fixing? Does your wheel axle need a size it carries? If planning to repair a chain, understand the joining method and bring compatible consumables as well. The maker says the M19 does not provide integrated quick-link storage, so any spare link needs its own secure place. Do not treat the presence of a chain tool as a complete repair procedure for every modern drivetrain.
Reasons to consider it
- A clearly published bit list makes it straightforward to check common fastener coverage.
- Side grips and a compact body give a defined handhold when opening and using the tool.
Limitations to weigh up
- No integrated quick-link storage is provided according to the manufacturer's support answer.
- Speed count alone should not be treated as confirmation for every specialist chain design.
Check before buying
- Match the M19 hex and Torx sizes to your bike's actual fittings.
- Confirm the chain-tool guidance for the exact chain fitted to your bike.
- Carry separate tyre levers, puncture supplies and an appropriate replacement joining link if needed.
The linked offer may include size, colour or pack options. Match the variant to the details above and check the delivered price and seller before ordering.
Care and everyday use
Wipe and dry the tool after exposure to rain or road spray. Keep it separated from a spare tube to prevent rubbing damage, and check the folding joints and tool tips periodically. Seek manufacturer guidance for worn chain-tool parts instead of forcing a failing pin.
Compare the alternatives
Topeak Hexus X Multitool
A 21-function folding bicycle tool that provides a broader repair-kit starting point than a basic hex-key set.