Timely as I'm thinking about a new one.
New bike seems to have a number of torq bolts - t10 for grips, t25 for stem and probably others too, as well as allen key. All my multitools are allen only.
So what multi tool covers common torq and allen and is tiny/lightwieght?
I was about to post a response and the power went out - 2hr power cut, ah well!
I was going to mention Fixit Sticks. Basically two pieces that slot together to make a T-shaped handled tool. I got one the other week in 3 Peaks Cycles in Settle in a sale for a tenner, 3, 4 & 5mm Allen key and a Phillips screwdriver, plastic holder to mount under bottle cage. Without the holder the two "sticks" weigh 50g.
There are more advanced versions that have swappable standard bits held in place by magnets so you can make up a set to suit your bike. They also do a chain tool to go with the handles.
Having said all that, the first and only time I've used it so far is to mount it on the road bike! So I've no long term feedback on how good or otherwise it is.
Just a note on the cheap Planet X tools. You have to take out the main securing bolt at either end and loctite them otherwise you end up with an interesting multi-tool puzzle after a few miles on a bumpy road.
https://www.planetx.co.uk/i/q/TOJOB9F/jobsworth-11-function-multitool
