Best 29er upgrade wheels for up to £400

Hi all, I have a Cube Attention which I cannot afford to upgrade totally, so I'll start with wheels.
29er up to £400, for general trail riding/XC racing. Just looking to lighten the load really!
29er up to £400, for general trail riding/XC racing. Just looking to lighten the load really!
Cannondale Supersix 105 2013- summer bike - love it!
Cannondale CAAD12 - racing fun!
Trek Crockett 5 - CX bike, muddy fun!
Scott Scale 940 MTB XC racer.
__@
_`\<,_
---- (*)/ (*)
Cannondale CAAD12 - racing fun!
Trek Crockett 5 - CX bike, muddy fun!
Scott Scale 940 MTB XC racer.
__@
_`\<,_
---- (*)/ (*)
0
Posts
Both these will save weight before thinking about spending on new wheels.
Add say £30 for Dt Swiss tape and valves.