Crank Brothers F15 Tool

The Crank Brothers F15 Tool is the most complete option in the Crank Brothers multi-tool lineup — a 15-function carry-all built around a hardened tool body and a magnetic case that houses a dedicated chain tool. Where most multi-tools ask you to compromise, the F15 covers the full range of trailside and roadside repairs without unnecessary bulk.

The hex wrench set runs from 2mm through 8mm, covering virtually every fastener on a modern bicycle. A T25 Torx driver, Phillips #2, and slotted #1 round out the driver selection. The chain tool works with 8 through 12-speed chains and is operated via an Allen fitting on the tool body — the magnetic case detaches cleanly so you have a stable, ergonomic grip while you work. Four spoke wrenches (sizes 0–3) are built into the chain tool handle, so wheel truing is covered as well. The case itself includes a bottle opener, a small detail that speaks to how thoroughly this tool is designed to be self-contained.

Crank Brothers F15 Tool Specs at a Glance

• 15 total functions
• Hex wrenches: 2, 2.5, 3, 4, 5, 6, 8mm
• Chain tool compatible with 8/9/10/11/12-speed chains
• Spoke wrenches: sizes 0, 1, 2, 3
• Weight: 165g | 5-year warranty