Perhaps an addition to your list, GA2G: The Hiplok D-lock, of which I own one. It's a small 16mm diameter D-lock: 13x8 cm internal dimensions, weight: 1kg exactly.
It's got a clip to go on a belt, bag strap (or your trousers, edge of a pack etc.), which I find to be a slightly more secure way of fixing than sticking a regular D-lock under my belt.
Only issue of course is size: I've got 50mm rims and lots of clearance, so it can't hug the wheel+ +frame+object all at once on my bike, but I guess it could for others. As a secondary lock, it can lock a wheel to the frame with no empty space.
Perhaps an addition to your list, GA2G: The Hiplok D-lock, of which I own one. It's a small 16mm diameter D-lock: 13x8 cm internal dimensions, weight: 1kg exactly.
It's got a clip to go on a belt, bag strap (or your trousers, edge of a pack etc.), which I find to be a slightly more secure way of fixing than sticking a regular D-lock under my belt.
Only issue of course is size: I've got 50mm rims and lots of clearance, so it can't hug the wheel+ +frame+object all at once on my bike, but I guess it could for others. As a secondary lock, it can lock a wheel to the frame with no empty space.
GBP 30 from Evans if you don't mind the colour: https://www.evanscycles.com/hiplock-d-lock-EV199840