|  Subject: RE: LG Prologue helmet, new, size medium.If memory serves, placing them in order of incresing "aero-ness"  (I know that's not really a word, but I think you get the idea ) it goes: 
  
Chrono  
Prologue  
Rocket. 
  
The longer tail on the prologue helps it relative to the Chrono, and the Rocket tends to have a little better fairing onto the back, which helps it even further.  Of course those run another $75 or so...   
  
A "prologue" in bike race terms is a short time trial, before the first stage  (in a stage race like the Tour de France ) that serves to place the riders going into stage one, with very little time differences.  So it IS a time trial.  Just the name they gave this helmet. 
  
And the reason I'm selling this one is that I picked up a Rudy Project Syton Open that just fits my noggin better. |