Getting ever more popular, carbon lids are not only stronger and lighter, but are more affordable. Here are a small selection, with price and the all important weight.
(from top, clockwise)
AGV Pista GP around £800 weighing in at 1275g
Nexx XR1R Carbon around £300 weighing in at 1250g
HJC FS-10 Carbon around £250 weighing in at 1400g
Shark Speed-R MXV Carbon around £280 weighing in at 1370g