Bike Tool Set In SOS Tool Tray

Cup-and-cone hubs are the reason a wheel bench needs thin wrenches in sizes ordinary tool sets skip. A cone wrench has to reach into a locknut stack only a couple of millimetres wide, and the moment you are one size short the job stops. The Unior 1600SOS16-US is a single-purpose tray: 21 single-sided cone wrenches spanning 13 mm to 36 mm, doubled up in the sizes a hub bench actually repeats.

What's in the tray

Cone wrenches, single sided — 21 pieces:

• 13 mm, 14 mm, 15 mm, 16 mm and 17 mm, two of each.
• 18, 19, 20, 22, 23, 24, 26, 27, 30, 32 and 36 mm, one of each.
• SOS tool tray shell for 1600SOS16 (564 × 364 × 30 mm).

That is the entire tray. The doubled sizes are the point: a cup-and-cone axle is adjusted by holding the cone with one wrench while the locknut is torqued against it with a second, and 13 through 17 mm covers most road and mountain hub cones in service. The larger sizes up to 36 mm cover locknuts, bottom-bracket flats and older hub hardware.

Where the 1600SOS16-US fits in the system

The 1600SOS16-US is the hub-service tray in the legacy 1600SOS13–19 series. It pairs most directly with the 1600SOS18-US, which carries the spoke wrenches, so a wheel bench running both trays has bearing adjustment and truing side by side. The rest of the series:

• 1600SOS13-US; hanger alignment and cable work
• 1600SOS14-US; combination wrenches, pliers and measuring
• 1600SOS15-US; hex, Torx, sockets and torque
• 1600SOS17-US; cassette, freewheel and crank tools
• 1600SOS19-US; T-handles and screwdrivers

The current-generation cone wrench tray is the 1600SOS24; its size run differs from this one, so check the sizes against your hub inventory rather than assuming the two trays are interchangeable.

Compatibility

Tray shell 564 × 364 × 30 mm, the standard Unior SOS footprint. Measure your drawer's clear internal width and depth before ordering.

Built in Zreče, Slovenia

Unior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. Cone wrenches are the test case for forging quality, because the tool is deliberately thin and still has to resist spreading under load; a stamped cone wrench rounds a locknut long before a forged one does.

Pro tip from our mechanics

Buy cone wrenches by the tray rather than by the size. Shops that buy them individually always own three of the common sizes and none of the odd ones, and the odd one is what walks in on a Friday afternoon attached to a vintage touring bike. Our workshop guide covers stocking decisions like this: How to set up a professional bike workshop →