Cannondale Bike Frames
Cannondale Serial Number Translation
Cannondale Frame Serial Numbers Lookup

The serial number is on the underside of the frame where the bottom bracket is, right underneath the bottom bracket. It is a 2002 Cannondale R400. Cyclingiscool, Feb 4, 2020.

Cannondale Bike Frames

2006-08-13 19:33:07 UTC

If you have a serial number, two lines, one above the other, with
spaces between the left and right sides, and it has letters and
numbers. I was told I should not post the actual serial number
online.... I'm not sure why. But, can anyone tell me how to read it
to know what is the frame size and year?
I will put 'L' for a letter character and '#' for a number character:
LL __________ #####
LL### _______ 3R6W53
I left the last part intact. I know from the marking on the frame that
it is a Cannondale III R. So, I'm guess that the 3R stands for that.
It is a ladies' bike (or so the seller told me) and I usually ride
around a 52 to 54 cm bike frame. So I'm guess the W is for Women's and
53 might be the frame size??? But one of the other numbers on the bike
included a 52. So, I'm not sure.
Anyway, can anyone tell me how to read this? I would like to know
specifically what my frame size is and what year my bike is. Oh yeah,
and for purposes of recording ownership, what portion of those numbers
constitute the serial number that I should put with my insurance
records?
Thanks,
Dawn

Cannondale Serial Number Translation

Cannondale Frame Serial Numbers Lookup

Here’s where to look: Cannondale bikes will display the serial number on the underside of the frame. It’ll be next to a bar code. Have an Older Bike?
All Cannondale bikes have a serial number issued by the manufacturing plant for a record. This serial number allows the company to track its products all across the globe for warranty and membership purposes. This serial number is present on the underside of the frame of your bicycle, and it will be right next to the bar code of that bike.
Vintage Cannondale – Serial Numbers. The serial number is the key to finding out what year cannondale you have. SN#2 indicates a 56 cm frame, built on February 5, 1988, #132. SN#7 indicates a 135mm dropout, 18” frame, built in March 1992.