Carbon frames-Torque wrenches

Aravis

I notice that it is a manufacturers instruction that all carbon fibre frames require maintenance to be carried out using a torque wrench. Failure to do so invalidates the warranty. Have carbon owners complied with this recomendation, if so what wrench are you using and where can it be bought.
My enquiries show that there a host of large wrenches available but extremely limited supply in cycle sizes i.e. 0 - 20+ Nm.
My particular concern relates to the seat tube and post on a Scott CR1.

JustRidecp

Hi. I bought a torque wrench for my carbon components - mainly seatposts/clamps, handlebar clamps/stem clamps. I was willing to pay the £35 from a local tool store for peace of mind. Don't worry about the range, torque wrenches are precision tools designed to be used for low torques - to ensure you dont overtighten delicate parts. 0-25Nm will do you fine as most seatpost/handlebar/stem clamps are in the 5-10Nm range.

25Nm is pretty tight so anything higher than that eg, crank bolts, lock nuts etc I do by hand. 3/8" drive is best for bikes, mine is 1/4" drive which means I need an adapter but works fine anyway and is 5-25Nm range. Best to go to a specialist tool store than a bike shop as these will have more selection, they cater for trade and I find bike shops to be overpriced for tools in general.

£35 isn't much to pay to ensure you don't damage expensive frames/components.

PhilA

I also purchased a torque wrench due to the fact I have a carbon frame and components.

One thing it made me realise is that the recommended torques of the stem/seatpost/cranks etc. are actually higher than I used to do by hand, which was tight enough. I tend to stick to the lower limit of the recommended torques.

It gives you peace of mind and, if it potentially has a warranty issue with your frame, £35 isn't much to spend.