Yes Mark this Saturday
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However I do not intend riding all the way to Rye if there is any rain forecast, for example if showers are forecast in the afternoon then I have no desire to start getting wet and still have 70 rolling miles to do. Looks okay at the moment.
If there is rain forecast for during the day then although I won't do the Rye ride I would still do an alternative ride from GBs at 9am through the Surrey and Kent lanes (probably out towards Ashdown Forest and through Penshurst). This would still be a longish ride and can be extended with various loops if the weather changes it's mind, but having the advantage of being nearer to home should it get worse.
Just a reminder if you intend to come please print the map out (earlier in the thread) and check you're okay with the details (original post).
Cheers, and fingers crossed for Saturday.