If you wait until
04 – 06/06/2010 world cup dh /4x FORT WILLIAM United Kingdom
"Underneath the yellow tents, on the day before and leading up to the start of the event, Mavic technical support will help any participant in any way that they are able to – within the limits of their means or obligations to the organisation. Our technicians will fix the problems of the participants, repair wheels plus offer help and technical advice. For this service, all labour is free of charge and any necessary parts and accessories will be charged at the recommended public price."
http://www.mavic.com/mtb/sport/assistance.aspx
or ask Mavic
Contact: fr-contact-maviclab@mavic.com or (+33) 450 654 141