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Wow, thanks - perfect! So it does make an appreciable difference over a 25'. Hmm, my bank balance was hoping it wouldn't..
onyerbike-
selling a giro advantage helmet if its the right size for you http://www.lfgss.com/conversations/274512/#comment12522956
laner
http://cyclingtips.com.au/2010/04/biggest-bang-for-your-buck-in-time-trial-equipment/