52 degrees? No need for heated gears yet in my book.
Thick warm jacket and quality gloves is all you need at those temps...
Once you're in the 40s, it's hard to find non heated gloves that will keep your fingers warm as it's the first part of the body that gets cold.
As for jacket, I picked up a thick winter Guzzi one made by DAINESE (D-tech engineered) that was on clearance at my dealer and this thing keeps me warm in the 20s temps with only Tshirt and sweather underneath. I love this thing, it's also waterproof.
Have waterproof Sidi boots that keep my feet warm at those temps as well...
It's just the gloves, they have to be the heated kinds in that case, simple as that.