My first port of call is a pair of gloves that I can get my hand in.
I'm not kidding. Most shops don't stock, or cannot get gloves that are large enough for me. It's the distance knuckle to knuckle that is the problem. 4 inches open hand, 4.5 inches if I'm forming a fist.
Held have been the first gove that I have come across that didn't need breaking in. I don't think the Held Teramid is available any more - but they look like this model on the left. Textile and leather mixture with knuckle protection and a genuine Goretex membrane. They don't get water logged in the persistant rain and they are quite warm - and work well with heated grips onsetting 2 (out of 3). The Goretext hasn't let me down either - which has been a problem before when squeezing into not quite large enough gloves. It doesn't 'give' like the leather or this textile cordura like material, and over time, the water proof seam gives way. No such problem with this glove.
My jacket has a storm cuff, which fits inside the glove and an outer which goes over the glove. The glove accommodates fitting over or under the jacket cuff. They still feel dry on the inside after stopping in rain for a meal, and they have enough give to make it not impossible if your hands get slightly damp while putting on your helmet.
The protection is Ok - although there must be better gloves for that. But I reckon that the protection work best if your hand is inside the glove, and most manufacturers seem to fall at the first hurdle as far as I am concerned.
These have been an excellent buy.