Riot shield wheel covers

I think the key question is the weight, could you please, give us exact weight for one cover, please.

@rik: Regarding weight I can only give an estimate at the moment. My calculation:
25.5"diameter (to suit a 26" rim)
axle clearance hole 5cm diameter
= approx. 600grams

sorry to double check, 600gr is just one cover?

seen to me a bit to heavy...

could you do them of just 1mm and reduce weight in half???