First gen serial # question

[Flat tyre bikes]

Picked up a Cannondale with BB serial. Any way to tell what month by the other numbers? Hoping it's a true 84 rather that built in 84 for 85 model year.

 

[letsbike]

What bicycle is it?

I'm guessing an ST since there is a braze-on on the down tube.

 

[letsbike]

Or one of these? The Charcoal color looks like your picture. Interesting dual type brakes.

 

[Flat tyre bikes]

Sm500.

 

[black lightning 1987]

I don't know how to tell which year from the serial number. The main difference I see between the two years is the 1984 bike came with a SunTour freewheel and the 1985 with a twisted tooth Shimano. Of course that's one of the most likely components to have been changed but that bike doesn't look to have been ridden very much.

 

[Flat tyre bikes]

I don't know how to tell which year from the serial number. The main difference I see between the two years is the 1984 bike came with a SunTour freewheel and the 1985 with a twisted tooth Shimano. Of course that's one of the most likely components to have been changed but that bike doesn't look to have been ridden very much.

Thanks for this info I'm hoping it's an early one. Components are really nice Frame has a couple good scuffs. No kickstand was ever mounted,which I'm happy about.

 

[Flat tyre bikes]

Thanks for this info I'm hoping it's an early one. Components are really nice Frame has a couple good scuffs. No kickstand was ever mounted,which I'm happy about.

12/83 stamp on rim

 

[Teomat79]

Il Mio sm600 ha i numeri di serie sui foderi obliquo del carro posteriore ed è la prima serie con cerchi spaiati 26" anteriore e 24" posteriore. Anno 1985

 

[Teomat79]

 

[Flat tyre bikes]

View attachment 13326

Very nice looking bike,Teomat79. Tire choice is on point. One thing I need to try is a hite rite.

 

[letsbike]

Il Mio sm600 ha i numeri di serie sui foderi obliquo del carro posteriore ed è la prima serie con cerchi spaiati 26" anteriore e 24" posteriore. Anno 1985View attachment 13325

 

[black lightning 1987]

12/83 stamp on rim

That's encouraging. Doesn't prove it's an '84 but at least it's not dated in 1985. Are the wheels original? The freewheel looks to be a SunTour. Pull the wheel and see if the freewheel is a New Winner.

 

[Flat tyre bikes]

That's encouraging. Doesn't prove it's an '84 but at least it's not dated in 1985. Are the wheels original? The freewheel looks to be a SunTour. Pull the wheel and see if the freewheel is a New Winner.

A pic of seatpost and back of brake. Both stamped 83. Wheels are original. Cannondale logo made by Sun. And a pic of freewheel.

 

[letsbike]

I never realized there where date stamps on components. I think on a slow day that I'll have to look through the ole' parts chest to see what I really have in there. Thanks!
I think there is no doubt that your bike is an 84'. What are you going to do with it? Your stable is getting big.

 

[Teomat79]

Sui miei cerchi

 

[Teomat79]

 

[Flat tyre bikes]

I never realized there where date stamps on components. I think on a slow day that I'll have to look through the ole' parts chest to see what I really have in there. Thanks!
I think there is no doubt that your bike is an 84'. What are you going to do with it? Your stable is getting big.

It's fun breaking down a vintage find. I'm enjoying learning the history of Cannondale and finding a bike from the beginning is pretty cool. I'm planning on tearing it down and refresh the components, put in some new cables, get it ready to ride. Then hang it up with others. Tinkering with old bikes is a great hobby.