I am so green when it comes to cannondale bikes and was looking for any assistance. Here is the info I have. It has nitro on the handlebars, Suntour 3000 on the gears, a part that says only for the derailleur suntour, the serial number is 23092187080. Made in USA. Any help in pricing would be greatly appreciated. The tires are 27" and the tire air valve has some strange connector top and I don't know how to fill with air - any help on this is greatly appreciated. Thank you all for your help.
Also, how can I tell what the model is an st or sr? thank you again.