Set of tools in tray 2 for 2600A-US or 2600C-US

A drivetrain tray is the workshop’s busiest tool drawer. Chain replacements, cassette swaps, crank pulls, and bottom-bracket service all draw from the same tool inventory; missing one tool in the set means breaking the rhythm of the work and walking across the shop. The SET2-2600AC drivetrain tray for the Unior 2600A and 2600C workbenches bundles 26 drivetrain tools into a single foam-cut bench drawer, sized to drop into the 990WD7 cabinet integrated into the 2600-series benches.

What’s in the tray

Hanger alignment and chain service:

• Hanger Genie (1602/5); derailleur hanger alignment.
• Pro chain wear indicator (1643/4); 0.6%/1.2% wear gauge for 6–10-speed bench reference.
• Master chain tool (1647/2BBI-US); multi-format chain breaker, 6–13 speed plus AXS Flattop.

Crank service:

• Crank cap tool (1609.1); Hollowtech II preload cap.
• Pro pedal wrench (1613/2BI-US); 15 mm thin-profile road pedal wrench.
• BB90 removal tool (1625/2BB90); Trek BB90 press-fit cup removal.
• Crank puller with handle (1661.3/4DP-US); integrated handle, splined.
• Tapered crank puller (1662/4); square taper crank-arm removal.

Cassette and freewheel removal:

• Freewheel removal tool (1670.1/4)
• Freewheel remover Suntour® (1670.2/4 and 1670.3/4); both Suntour patterns.
• Campagnolo cassette lockring tool (1670.4/4)
• Cassette lockring tool (1670.5/4); Shimano HG / SRAM HG / Micro Spline / XD / XDR.
• Freewheel remover for BMX® (1670.6/4)
• Cassette lockring tool with 12mm guide pin (1670.9/4); for 12 mm thru-axle hubs.
• Cassette wrench (1670/2BI-US); for first-cog cassette holding.

Bottom-bracket sockets; full BB-standard coverage:

• BB socket 16-Notch (1671.16N); Shimano Hollowtech II.
• BB + Bosch Gen 3/4 lockring, 8-Notch (1671.2/4); Bosch e-bike motors plus 8-notch BB cups.
• Cartridge BB wrench (1671.8/2BI-US)
• BB sockets BB9000, BBR60, BSA30, MegaEVO, T47 (1671.BB9000, 1671.BBR60, 1671.BSA30, 1671.MEVO, 1671.T47); five additional cup-spline patterns covering modern Shimano, Praxis M30, BSA30, MegaEVO, and T47 standards.

Ratchet handle:

• Reversible ratchet 1/2” (190.1/1ABI-US)

Impact:

• Dead blow hammer (819A-US)

The tray ships with the empty foam shell (VL2-2600AC); replacement shells available separately.

Why this is the drivetrain tray

SET2-2600AC covers every modern BB standard alongside the chain-and-crank service tools, so a shop never hits the “we don’t have that BB socket” wall during a service. The five BB socket patterns (BB9000, BBR60, BSA30, MegaEVO, T47) plus the 16-Notch and 8-Notch sockets cover every current Shimano and Praxis cup, every current SRAM DUB and BSA30 install, every T47 frame, plus the Bosch Gen 3 and Gen 4 e-bike motor lockring patterns.

For shops needing the wheel-and-spoke service inventory alongside the drivetrain inventory, the SET3-2600AC Wheel Tools tray is the natural companion. For torque and socket work, the SET4-2600AC Torque Tools and Pliers tray handles the precision-torque half.

Compatibility

Sized for the bench-integrated 990WD7 drawer in the Unior 2600A and 2600C workbenches. The same drawer dimensions appear on the standalone 990WD7 wide tool chest for shops running the cabinet without the bench.

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 Master Chain Tool 1647/2BBI in this tray is the modular-insert chain tool Unior originated; the tool SRAM lists as Flattop-compatible in their service archive.

Pro tip from our mechanics

The SET2-2600AC is one of the four foundational trays in the 2600A/C bench loadout (alongside SET1 general tools, SET3 wheel tools, SET4 torque tools). A new shop ordering a 2600A bench typically specifies all four at order; the bench is sized for them, and the cabinet drawers are sized for the foam shells. Our broader workshop-setup guide covers the bench-vs-tray ordering sequence: How to set up a professional bike workshop →