Marcus; Not exactly sure, but I was under the impression it was mostly for shorter time trial. Mick, Norris or someone from the U.K. would probably be best at providing the answer.
Regards, Peter
Peter W. Naiman
Online Sales Assistant
Co-Chairman., Larz Anderson National Bicycle Show
Chairman., River City Midwest Bicycle Show & Swap
Member: Cream City Cycle Club., Milwaukee, WI
Coordinator of the Cream City Century
http://www.creamcitycycleclub.com/
5551 North Mohawk Avenue
Glendale, WI 53217-5034
Email: hetchinspete1@yahoo.com