Originally Posted by
Hondo6
Depending on how experienced you are with mechanical work and judging torque by "feel", a set (1/4" and 3/8" drive) of inexpensive torque wenches might be a good buy as well - the 1/4" drive in particular if you work on carbon components. Ditto a set of metric Allen wrench drivers (sets of 13 ranging from 2.5mm to about 10/12mm are available) if you don't have them already. But a pair of even lower-end torque wrenches are going to cost you around $50 or more.
I agree that a torque wrench is mandatory for carbon fiber components. Luckily all the bolts for the carbon components on my bike are 6 Nm, so I bought this reputable but inexpensive one: (
Amazon.com : Topeak Nano TorqBar 6 with 5 Tool bits, 6nm : Sports & Outdoors). An additional advantage is that this mini torque wrench fits where others do not, e.g., forward bolt of Cannondale Save seat post (15 mm offset).