Slipper Torque Wrench 5 to 110Nm

The fasteners above 25 Nm are the ones that hold the bike together. Cassette lockring at 40 Nm. Crank-arm bolt at 35–50 Nm. Pedal threads at 35–40 Nm. BB cup install at 35–50 Nm. Centerlock rotor lockring at 40 Nm. Miss any of these by the wrong amount and the failure is either a cracked thread or a part backing out under load, the failures that strand a rider mid-ride.

The 264 series 5–110 Nm slipper torque wrench is the drivetrain-side bench tool. The 3/8″ square drive matches the standard cassette-lockring and BB socket interface, and the spring mechanism clicks at the set value so the cassette goes back to 40 Nm and the crank bolt to manufacturer spec without guessing.

What this wrench is for

• Cassette lockring: Shimano HG and SRAM HG at 40 Nm; SRAM XD/XDR Eagle at 35–45 Nm; Campagnolo road and Ekar at 50 Nm
• Crank-arm bolt: square-taper M8 at 35–50 Nm; ISIS / Octalink M15 at 40–50 Nm
• BB cup install: Hollowtech II external 35–50 Nm; SRAM DUB threaded 34–41 Nm
• Pedal install at 9/16″ × 20 TPI: typically 35–40 Nm (Shimano publishes 35)
• Centerlock rotor lockring: 40 Nm

For cockpit, brake, and rotor-bolt values that sit at the low end of the bike's torque spectrum, the bench reaches for the 2–24 Nm version. The two wrenches share the same spring mechanism and the same one-way calibration; one bike service almost always reaches for both.

How it reads

The slipper mechanism is a spring-loaded preset. Set the dial to the target, lock it, and pull. The wrench produces an audible and tactile click the instant the applied torque matches the set value, and the pull stops on the click. A second click is a second torque event on the fastener.

The reversible ratchet head engages either direction for fastener access, but the torque-controlled stroke is one-way. Breaking torque belongs to a regular ratchet or breaker bar.

Specs

• Range: 5 to 110 Nm
• Drive: 3/8″ square, reversible ratchet head
• Length: 360 mm
• Weight: 1100 g
• Scale: dual scale, Nm primary and Kgm secondary
• Standard: made according to ISO 6789
• Recalibration interval: 12 months or approximately 5,000 cycles
• Article: 264 (SKU 615486)

Includes: fitted plastic carrying case; 1-year standard warranty (extendable via product registration).

Built in Zreče, Slovenia

Unior has been forging hand tools in Zreče since 1919, and is the official technical partner of multiple World Tour and downhill teams. The 264 series at 3/8″ drive sits at the busiest part of a workshop bench, where the cassette, the cranks, and the bottom bracket all come off and go back on under torque control. The longer handle reads cleaner values at the drivetrain end than a smaller-range wrench reaching up to its ceiling.

Pro tip from our mechanics

The drivetrain torques are the ones that don't forgive a guess. Cassette lockrings under-spec back out under hard pedaling. Crank bolts over-spec stretch and lose preload. The pillar guide maps where every drivetrain fastener lives in the range, which manufacturer publishes which value, and how the cross-pattern sequence on a multi-bolt fastener gets the clamp face flat.

How to use a torque wrench on your bike →