Adjustable Hook Spanner C Wrenches Metric Garage Motorcycle Repair 22mm-210mm

Measure the outer diameter of the collar nut or bearing locknut you need to turn, then select the size range that includes that measurement. For example, if your nut is 30mm in diameter, choose the 28–32mm variant. When in doubt, size up — the hook pin adjusts within the range, so a slightly larger range still engages correctly.

Yes. Fork preload collar nuts typically fall in the 38–62mm range depending on the motorcycle model. Select the size variant that covers your fork's collar diameter. The hook pin seats into the notch on the collar, allowing you to adjust preload without damaging the anodized or chrome surface.

The hook pin is a sliding component seated in the C-body channel. On most designs it can be removed and repositioned. If the pin becomes damaged, contact us to confirm parts availability for your specific size variant before ordering a replacement.

The hardened steel C-body is designed to transmit the torque levels typical of bearing locknut applications (generally up to the torque spec of the bearing manufacturer). For very high-torque industrial applications, verify the wrench size and apply torque gradually. Avoid using extension bars beyond what the handle length provides, as this can overstress the hook pin.

The steel body provides solid structural strength. For long-term storage in humid environments, wipe the tool with a light machine oil after use to prevent surface oxidation. The finish on each variant may vary — see variant options or contact us to confirm the specific surface treatment.

A hook spanner (also called a C wrench) uses a single curved hook that engages one notch or slot on the collar nut's circumference. A pin spanner uses two pins that engage two holes drilled into the face of the nut. Hook spanners are more versatile for slotted collars, while pin spanners are used where face holes are present. This product is a hook spanner — confirm your nut has a circumferential notch or slot before ordering.

Yes. The hook pin engages the notch regardless of thread direction. Simply apply torque in the correct direction for your thread type — clockwise to tighten right-hand threads, counter-clockwise for left-hand threads. The C-body design accommodates both orientations without modification.