Here's the link to the warranty page at Dahon UK.
Originally Posted by catboy76
There is mention of "the dealer" but no explicit mention that the dealer has to be one of Dahon's authorized dealers, as there is on the US Dahon site, probably because of differences in the governing law; I've read that the EU is more consumer-friendly in this regard. Here's what the US website says:
"This warranty only covers bicycles and components purchased through an authorized Dahon dealer and is only valid within the country in which the bicycle was purchased."
You can quality for a lifetime frame warranty by having the bike tuned-up at the LBS before it's ridden. One would typically save the receipt to prove this took place.
My advice would be to go for the tune up, since you've already saved money on the purchase and, if the bike is not properly tuned, and bolts are not tightened to recommended torque, you can damage the bike. If the Seller has already done this, and is recognized by Dahon UK as having the necessary know-how, and provides you with a written statement that the tune-up took place, then you're squared away.