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The Black Diamond ice climbing gloves have knuckle protection (and cool names). The Punisher is warm with primaloft and the Terminator is thinsulate (i think). The gf has been using the old version of the punisher, which has even more finger protection, on super cold days recently and likes them. They also have a predefined curve for gripping the handlebar (or ice axe).
Saying that, my all time favourite very cold day glove is the Specialized Radiant, which i've had for years. They have 100g Thinsulate. Sadly my pair is falling apart and they don't do them anymore :(
https://fawkes-cycles.co.uk/chiba-gloves-chiba-polarfleece-thermal-winter-glove-in-black-p24350/s50861
We got some of these in at work recently, seem really good for the price, considering swapping my nice Montane polartec ones for them as they're similar but have a few extra bikey designs that make them nicer, thicker fleece on the backs of palms, nicer shape with closed hands, seams out the way and re-enforced bit between the thumb and index finger.