Crankbrothers M5

No, the M5 is designed specifically for essential roadside adjustments and does not include a chain breaker. It focuses on the most common hex and screwdriver needs to keep the tool as compact and lightweight as possible.

The M5 features four hex keys in the most common sizes: 3mm, 4mm, 5mm, and 6mm. These will cover the vast majority of bolt adjustments you'll encounter on a standard bicycle.

Yes, it is built to last. The body is constructed from 6061 T6 aluminum, while the tool bits are made from high-strength 6150 steel, ensuring they won't easily strip or bend during routine maintenance.

The M5 weighs just 85 grams. Its streamlined, compact profile is specifically designed to disappear into a jersey pocket or a small saddlebag without adding noticeable bulk.

It is intended for on-the-go repairs and basic adjustments, not a full workshop overhaul. While it handles common tightening tasks perfectly, you will still need a dedicated shop toolset for more complex mechanical work.