The EA70 would seem to indicate that it is using Easton aluminum (alloy) components in the cockpit (stem and handlebars, likely). Many of the current Cannondale bikes seem to use a proprietary seatpost, so that doesn't seem to be a part of this equation.

Without knowing more about the bike, we couldn't tell you whether the frame is aluminum or carbon, in full or in part.

I didn't see anything about the a Synapse EA70 model on the Cannondale website either, but there are many models called Synapse.

Go to   http://www.cannondale.com/usa/usaeng/    and do  search for synapse    That will show you models back through 08.  Then go into the archives.  (Choose the bike drop down and archived is the last line.)  In the archives you'll find numerous synapse models (and frames some years) back through 2006.

Why are you calling it an EA70 model? Where is that on the bike?  What words & numbers are actually on the frame?  Where is EA70 located?  I didn't see an EA 70 model among the many Synapse models on the website, so maybe that isn't the model name.

Sam

Sam

Thanks Guys.
I am calling EA70 because that' s how the bike is listed  for sale.
Like me, the seller does not know much about bikes, but told me  it is all carbon. Asking price 1500.00.
I will investigate some more.
Rejane

Sounds like they're just reading the label on the seatpost/wheel/stem or some other part. $1500 may or may not be a good price, depending on the components on the bike. (A new synapse carbon 6 with the low-end shimano components goes for about $1600) If you figure out the components, you can go to the cannondale archive ( http://www.cannondale.com/usa/usaeng/Archive ) and figure out what model synapse it is. Ask the seller what it says on the shifters and the rear derailleur and that should be a good indicator.

Got it all figured out  once I went to see the bike.  The bike is 2006  Synapse Carbon 3
Excellent condition, super low mileage. Look Pedals , flight deck comp.
Frame Synapse Carbon
Fork Synapse S.A.V.E.
RearShock N/A
Rims Shimano WH-R550
Hubs Shimano WH-R550
Spokes Shimano WH-R550
Tires Hutchinson Top Speed foldable, 700 x 23c
Crank Shimano 105 Triple, 30/39/50
Chain Shimano 105 10-speed
Rear Cogs Shimano 105, 12-25
Bottom Bracket Shimano 105
Front Derailleur Shimano 105
RearDerailleur Shimano Ultegra
Shifter Shimano 105
Handlebar Cannondale Fire, 31.8 mm
Stem Cannondale Fire 3-D Forged
Headset FSA Carbon integrated
Brakeset Shimano 105
BrakeLevers Shimano 105
Saddle Fi'zi:k Aliente Sport
Seat Post Cannondale Carbon-wrapped
Price went down to 1250.00
Thx
Rejane