Frame Question

[Doug Liedblad]

You might check here:

http://www.lotussevenclub.com/

[Elv15]

You can decode the serial number here: http://7faq.com/owbase/ow.asp?ChassisNumbers

The The Magnificent 7 book has a history of the models and the changes per year. http://www.amazon.com/The-Magnificen...333516&sr=8-12

[dbfenton]

Frame Question,
What model year & S/N did Caterham start building the upgraded / stiffer / stronger frame? Where can I find some history on this upgrade?

Don