1996 R600

IdahoBrett

Well-Known Member
I like the colors. I don’t know much about the RX100 gruppo. If it is a 56cm frame I wouldn’t mind tinkering with this one for my wife. But looking at the head tube it might be much smaller. Not sure. It’s listed for $150 and is a 25 day old ad, so probably would take less.
96 R600

IMG_2417.jpeg
 

Jon K.

Well-Known Member
I like the colors. I don’t know much about the RX100 gruppo. If it is a 56cm frame I wouldn’t mind tinkering with this one for my wife. But looking at the head tube it might be much smaller. Not sure. It’s listed for $150 and is a 25 day old ad, so probably would take less.
96 R600

View attachment 13878

Twin to mine! Ultra Violet to Black Fade, the colors used by Timex-Cannondale racing team back in the day.

It does look a bit smaller than a 56. My 56 has about three fingers-width between the top tube and down tube at the head tube, and that looks like less. Of course the serial number on the bottom bracket shell will tell you for sure.

RX100 was the next-to-lowest gruppo from Shimano at the time (I believe it was RSX->RX-100->105->600 (tricolor, I believe)->Dura Ace. RSX was 7-speed, RX-100 and up 8-speed, I think. I know RX-100 is 8-speed because I'm using the brifters with the 8-speed setup on mine( 600 tricolor and 105, mostly).

There's a guy out in California, I think it is, who offers refurb service to restore operation to certain models of Shimano brifters - RX-100 among them. He turns them around quickly; mine work fine now.
 

Jon K.

Well-Known Member
RX100 gave up very little in performance compared to 105.
I checked Sheldon Brown's pages re Shimano gruppos through history, and he mentions that reports say that RX100 was basically the same as 105SC, just with a silver finish instead of gray (my 105SC hubs are gray).

Oh, and Dura-Ace of that vintage was 9-speed, but that hadn't filtered down to 600 Ultegra or 105SC yet.

Also, the frame size isn't part of the stampings on the bottom bracket, but there should be a frame-size sticker on the seat tube. My mistake.
 

IdahoBrett

Well-Known Member
I checked Sheldon Brown's pages re Shimano gruppos through history, and he mentions that reports say that RX100 was basically the same as 105SC, just with a silver finish instead of gray (my 105SC hubs are gray).

Oh, and Dura-Ace of that vintage was 9-speed, but that hadn't filtered down to 600 Ultegra or 105SC yet.

Also, the frame size isn't part of the stampings on the bottom bracket, but there should be a frame-size sticker on the seat tube. My mistake.
I do see the frame size sticker on the seat tube in the picture, now that you mention it. But the picture quality isn’t good enough to zoom in to read it fully. Probably moot. I’m the only person in my family that is passionate about bikes.
 

Trailmix

Active Member
I checked Sheldon Brown's pages re Shimano gruppos through history, and he mentions that reports say that RX100 was basically the same as 105SC, just with a silver finish instead of gray (my 105SC hubs are gray).

Oh, and Dura-Ace of that vintage was 9-speed, but that hadn't filtered down to 600 Ultegra or 105SC yet.

Also, the frame size isn't part of the stampings on the bottom bracket, but there should be a frame-size sticker on the seat tube. My mistake.
Actually, the frame size is part of the serial number.
 

Jon K.

Well-Known Member
Actually, the frame size is part of the serial number.
Frame size is usually at bottom right as you read the numbers in this era Cannondale.


According to the info in the serial numbers pages here, 1993-1999 did not have the frame size as part of the stuff stamped on the bottom bracket.

Four groups of numbers/letters:

1) Month/Year upper left, both alphabetic
2) Five-digit sequence number upper right
3) Six-digit fabrication shop order number lower left
4) Alphanumeric frame code lower right.

None of these are noted as having the frame size embedded. Did I miss some obvious clue?

I'll try to look at mine, but I don't want to remove the under-BB cable guide just to resolve the question. ;-)
 
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