Rockstar
Can you wear cricket helmets as bike helmets? If so, then I may have found a solution to my helmet problems with this cricket helmet by Ravinder Sembi. The honeycombed-shape of the helmet gives protection but also allows for breathability.

The lightweight and comfortable cricket helmet by Ravinder Sembi would only need a few, slight modifications to work as a bike helmet (like the replacement of the mouth guard with a chin strap). It is specially designed to keep cricketeers more comfortable, thus improving their performance.