Lezyne are very much the aristocracy of the multi tool world because they allow you to go a bit crazy and buy carbon versions of their products for an insane amount of money. And if you’ve got money to spend, and love the idea of an insanely light tool, then go for it. 

How to: Adjust Saddle Height and Angle

But if you’re looking for a solid, mid-priced tool that will get you out of any kerfuffle, then the Lezyne CRV 20 Multi Tool  is a good choice. It’s only 150g and has a knife, bottle opener, tyre lever and open ended spanners (vintage bike owners take note).