Birzman

Feexman Disc D21 Multi-Tool

The Birzman Feexman Disc D21 Multi-Tool is a trail- and travel-ready bike multi-tool built around the needs of modern mountain bikes, especially disc brake setups. Alongside the core hex and Torx keys for cockpit, drivetrain, and brake hardware, it adds disc-specific tools that help solve real ride-stopping problems—resetting pads after a wheel change, straightening a rubbing rotor, or dialing a quick wheel true—without carrying a separate shop tool roll.

• Disc-brake focused tool set - Includes the well-known Clam disc brake tool plus a disc brake piston press and rotor truing fork for fast pad and rotor fixes on the trail
• Comprehensive hex coverage - 2/2.5/3/4/5/6/8mm hex keys handle common bolts found on stems, handlebars, seatposts, brakes, and many accessories
• MTB-relevant Torx keys - T10 and T25 support common disc brake and rotor-related fasteners
• On-bike chain service - Integrated 9–13 speed chain tool for addressing broken chains and emergency drivetrain service
• Wheel and spoke readiness - Built-in spoke wrenches (3.2 / 3.4 / 4.0 / 4.4) for quick tension corrections when a wheel picks up a wobble
• Tubeless and valve maintenance support - Presta valve core tool simplifies adding sealant or clearing a clogged core during roadside repairs
• Extra utility without bulk - #1 crosshead screwdriver and bottle opener add practical convenience; 129g keeps pack weight in check