Very thin and soft plastic. At least the carbon fibre ones provide a bit of abrasion resistance when you crash :-)
For the tiny aero benefit (if any, it will depend on how it interacts with you), you might as well stick with the nicely made, comfy and somewhat protective Javelin.
Very thin and soft plastic. At least the carbon fibre ones provide a bit of abrasion resistance when you crash :-)
For the tiny aero benefit (if any, it will depend on how it interacts with you), you might as well stick with the nicely made, comfy and somewhat protective Javelin.