Bike Tool Set In SOS Tool Tray

Freewheel and cassette removal is the job where owning "most" of the tools is the same as owning none of them. Every manufacturer picked a different spline pattern, the patterns did not converge, and a shop that services anything older than last season needs the whole set on hand. The Unior 1600SOS17-US collects the removal tools for Shimano, Campagnolo, SunTour and BMX freewheels alongside the crank and chain tools that the same teardown needs.

What's in the tray

Freewheel and cassette removal:

• Freewheel removal tool (1670.1/4).
• Freewheel remover, SunTour® (1670.2/4) and freewheel remover, SunTour® (1670.3/4); the two different SunTour patterns.
• Campagnolo cassette lockring tool (1670.4/4).
• Cassette lockring tool (1670.5/4).
• Freewheel remover for BMX® (1670.6/4).
• Cassette lockring tool with 12 mm guide pin (1670.9/4); the guided version for 12 mm thru-axle hubs.
• Cassette wrenches (1670/2BI-US); 11/12t and 13/14t, for holding the small cogs while the lockring comes off.

Crank and chain:

• Crank puller with handle (1661.3/4P-US).
• Tapered crank puller (1662/4).
• Crank cap tool (1609.1); the Hollowtech II preload cap.
• Pro pedal wrench (1613/2BI, 15 mm).
• Cartridge bottom bracket wrench (1671.8/2BI-US).
• Master chain tool (1647/2BBI).
• Master Link pliers (1720/2DP-US); opens and closes quick links.
• Pro chain wear indicator (1643/4, 0–1.2).

Drive:

• Reversible ratchet 1/2".
• SOS tool tray shell for 1600SOS17 (629206, 564 × 364 × 30 mm).

The cassette wrenches in this tray are the small-cog holding tools rather than a chain whip; if your workflow depends on a chain whip, it is a separate purchase.

Where the 1600SOS17-US fits in the system

The 1600SOS17-US is the drivetrain-teardown tray of the legacy 1600SOS13–19 series. It sits directly alongside the 1600SOS18-US, which carries the bottom bracket sockets; between them the two trays cover a full drivetrain strip. 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
• 1600SOS16-US; single-sided cone wrenches
• 1600SOS19-US; T-handles and screwdrivers

Compatibility

Tray shell 564 × 364 × 30 mm, the standard Unior SOS footprint, available separately as part 629206. Measure your drawer's clear internal dimensions 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. Removal tools are a hardness problem more than a shape problem: the splines have to stay square through thousands of high-torque engagements, because a rounded remover takes the hub with it.

Pro tip from our mechanics

Check the chain before quoting the cassette. A chain replaced at 0.5% wear usually lets the cassette survive; a chain that reached 0.75% has generally taken the cassette with it, and finding that out after you have already removed the lockring is how a twenty-dollar job becomes an awkward phone call. The wear indicator in this tray is the first tool to touch the bike, not the last. More on service sequencing: How to set up a professional bike workshop →