Unior Torque Wrench

Yes, it is excellent for carbon fiber. By allowing you to tighten fasteners to exact manufacturer specifications, it prevents the over-tightening that often leads to cracked frames or components.

While it features a ratcheting mechanism for efficient tightening, torque wrenches should generally not be used to break loose seized or over-tightened bolts. Use a standard wrench for loosening and save this tool for the final, precise tightening step.

This wrench uses a 3/8-inch drive. You will need to ensure your socket set matches this drive size, or use an adapter if you are working with 1/4-inch or 1/2-inch bits.

This range is very versatile and covers the vast majority of bicycle maintenance tasks, from delicate stem bolts to heavier bottom bracket or cassette installations. However, for extremely low-torque applications like some ultra-lightweight derailleur screws, you might occasionally need a smaller, dedicated micro-torque wrench.

Like any precision instrument, it should be calibrated periodically to maintain accuracy, especially if used daily in a professional shop. For home use, storing it properly—at its lowest setting—will help maintain its calibration for much longer.