Weight? Lighter that a suspension fork. Are you sure you should using electrical equipment?
Cotic Rodhog’s are excellent. I have a set on my Inbred (running 700c wheels) and they ride really well. They are flexible – which is good for damping road buzz – but some maynot like this.
The IS mount is on the wrong side and you need to invert the mount and shim the calliper to get it to fit. However this means you can fit a proper mudguard without fouling the brake.
The only other thing is the 400mm a-c height. A bit short this – even for an 80mm travel HT. It would be great if they offered it in longer a-c heights.
Other than that Project II from Kona or On One Superlights are good.