The Ritchey Torque Key M4 5NM provides a quick and affordable way to ensure the correct torque is applied to your Ritchey carbon bar and WCS stem combination. The small wrench is preset to 5NM. Fortunately there are a plethora of other bicycle components that use a 4MM bolt and require a torque spec of 5NM, so it is a very useful tool for those of us who do not own Ritchey components as well. 53g.
a Cross Country Rider
from Ontario Canada
Date Reviewed: March 1, 2010
Strengths: Ease of use. Simplicity.
Weaknesses: It only comes in the 4mm size. Let's have a 5mm also!
This is an excellent handy tool that takes all the guesswork out of tightening 4mm bolts on expensive bike parts, like stems. As it's pre-set for its 4mm allen wrench (non removable) and is dead easy to use - just pick it up, tighten any multi-bolt setup alternately (example - cross tighten 2 bolts in stages)and finally tighten them the final time which will make the tool click - indicating correct torque.
This tool is a no-brainer to use and perfect in its execution. It has a speed knob on the top for spinning bolts up. A great tool for experienced bike mechanics (to speed up their work) or novices (to take the guesswork out of tightening 4mm bolts). Ritchey - this tool is genius.