Unior Euro Multi-Tool 17

Unior has been manufacturing professional bicycle tools in Slovenia since 1919, and the Euro Multi-Tool 17 distills that century of expertise into a pocket-sized package. With 17 functions covering every common on-trail adjustment, this is one of the most capable compact tools available for serious bikepackers.

The tool selection is thoughtfully curated. You get 2, 2.5, 3, 4, 5, 6, and 8mm hex keys, T10 and T25 Torx drivers, Phillips and flathead screwdrivers, a chain tool, spoke wrenches for 14 and 15 gauge spokes, a tire lever, and a bottle opener. The inclusion of a 2mm and 2.5mm hex is a detail that matters — these sizes are needed for certain brake pad adjustments and dropper post clamps that other multi-tools overlook.

Build quality is immediately apparent when you pick up the Unior. The tools pivot smoothly with just enough resistance to stay deployed during use, and the steel has a noticeable hardness that inspires confidence when torquing bolts. Unior's professional shop tools are used by World Tour mechanics, and the metallurgy carries over to this trail tool.

The chain tool is one of the best in any multi-tool format. The pin is robust, the handle provides adequate leverage, and it pushes pins cleanly without the wobble that plagues cheaper designs. It handles 8-12 speed chains without drama.

At 195 grams, you are paying a small weight premium for the comprehensive function set and professional-grade materials. Bikepackers who carry a second, lighter tool for quick adjustments may find the Unior serves best as a primary repair tool kept in the frame bag.

For riders who want one tool that genuinely handles every conceivable trailside repair, the Unior Euro Multi-Tool 17 is an investment in reliability that pays for itself the first time you need it.