Bike Tool Set in Tool Tray — Cone Wrenches

Cone wrenches are the tool a shop never has the right size of. A 14 mm cone is for one hub generation; a 16 mm is for the next; a 17 mm or 19 mm shows up on the e-bike hub the shop just took on as a service category. The Unior 1600SOS24 tray solves the sizing problem by buying breadth in one purchase: 21 single-sided cone wrenches across the bike-side cone-fastener range, in pairs at the most common sizes so two hubs can be opened simultaneously.

What’s in the tray

Single-sided cone wrenches (1617/2DP-US series):

The double-quantity at 13–17 and 19 mm reflects the hub-cone sizing distribution across current road and MTB hubs; these are the sizes the shop reaches for daily, and having two of each lets a mechanic work both cones on a single axle at once.

Why pairs at the common sizes

Hub bearing service involves loosening the locknut on one side of the axle while holding the cone on the other side in fixed position. With a single-sided cone wrench, that’s one tool on each side of the axle; same size, opposite functions. A single wrench of the right size means service can’t proceed without a second tool of that size; the doubled-quantity at the everyday sizes (13, 14, 15, 16, 17, 19 mm) is the workflow guarantee that the shop can always service two hubs in parallel or work both sides of one axle without waiting.

Where it fits

The 1600SOS24 is the cone-wrench tray for shops that service traditional cup-and-cone hubs (Shimano, older SRAM, many Asian-OEM hubs) and want to retire the “do we have a 16 mm cone today” question. For shops servicing primarily cartridge-bearing hubs (DT Swiss, modern Mavic, modern SRAM), the cone wrench inventory matters less; the 1600SOS24 stays in the drawer for the legacy-hub customers.

Companion trays:

• 1600SOS21; Hanger Alignment & Cable Pliers
• 1600SOS23; Sockets, Ratchets & Torque Wrench
• 1600SOS25; Crank, Cassette & Freewheel Tools
• 1600SOS26; Bottom Bracket, Spoke & Brake Tools
• 1600SOS27; Hex/Torx T-Handles & Screwdrivers

Compatibility

Fits the full-width drawer slot in Unior’s tool carriages: Hercules, Eurovision, Eurostyle, Euromotion, and Europlus.

Built in Zreče, Slovenia

Unior has been forging hand tools in Zreče, Slovenia, since 1919, and is the official technical partner of multiple World Tour and downhill teams. The 1617/2DP-US cone wrenches use hardened-and-tempered chrome-vanadium steel with the single-sided thin-profile geometry the cone-and-locknut hub bearing service workflow needs.

Pro tip from our mechanics

The cone-wrench tray is the purchase that doesn’t make sense until the shop starts servicing a hub family with cone sizes the existing tool drawer doesn’t cover. Once it’s needed, it’s needed immediately; there’s no graceful workaround for missing a 14 mm cone wrench. Our broader workshop-tool-allocation guide covers how to anticipate which tool inventories to buy ahead of need: How to set up a professional bike workshop →