These rides follow the routes of the "Spring Classic" series of professional races.
I will be riding some or all of these and I am happy to arrange entries/hotels/ferries for anyone interested.
I need to know in good time though...
The hyperlinks dont work, so you'll have to cut & paste them to get to the sites...

Saturday March 20th - The Het Volk Sportive
A choice of 70, 110 or 140Km loops South of Ghent, along the route of the traditional Belgian season opener.
Some of us are doing this as a day trip, with a 4am start!
http://www.sport.be/cyclingtour/omlooppassagefitness/2010/fr/

Saturday April 3rd – The Tour of Flanders
This is probably the most ridden classic sportive for British riders.
A choice of 70 or 140Km routes. 17 climbs, half of them cobbled.
Watch the pro race on the Sunday.
http://www.sport.be/cyclingtour/rondevanvlaanderen/2010/eng/

Sunday May 2nd – Tilff–Bastogne–Tilff
The route of the Liege-Bastogne-Liege classic minus the first 12Km.
Long steep hills in the Ardennes, but good roads.
http://www.sport.be/cyclingtour/2010/fr/

Sunday 6th Jun – Paris-Roubaix
The Hell of the North – the toughest, roughest sportive.
98, 173 or 255Km with up to 49Km of the worst cobbled roads available.
Don’t take your race wheels!
http://www.vc-roubaix-cyclo.fr/site/index.php?option=com_content&view=article&id=82&Itemid=13&09af27f4860ccbaec0cf2cac64ac7b2c=48707507c9dca4473af40205a5cd1572