Join Date: Mar 2010
Location: Whittier, CA
Bikes: Specialized Roubaix
Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
I'm not 100% sure what a sportive is, is it just a non-race group ride? That one looks pretty sweet. As for advice, you don't need to ride the full distance before your event but I would suggest getting some miles in, say at least 200 miles a month in the two preceding months. If your normal training schedule has you putting in more than that you'll be fine.
If you want to be competitive or fast at your event, you'd want more miles of course.
Swindon to paris looks cool too - is that a multi-day supported ride? How good are you at swimming with your bike?