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Old 03-17-06, 02:58 PM   #1
publius
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Ok, so I recently picked up a Ross 10-speed and a Ross frame. I've done some searches on Ross here and it seems like they have a fairly varied history to say the least and I was wondering if either of these frames (that's the main thing I'm interested in) is worth working with. I was planning to make a single-speed so I was mainly interested in getting the horizontal dropouts on these, but I'm just a little curious as well.

The blue one is just a frame I picked up. The only markings are two places where it says Ross and there is one sticker that says Cr-Mo on it. What is chromoly? I've seen it mentioned a lot but don't know a whole lot so would like to have some explanation.

The complete bike is labelled as a Ross Professional Gran Tour II. It has an additional sticker on it that I couldn't photograph that talked about it being lugged steel from Allentown or something. Any idea which of these frames is of better quality, etc? Sorry for asking dumb questions, I really am interested in learning how to tinker with bikes but don't have a ton of money to do it, so I thought for $5 I couldn't go wrong with messing with these frames.

Edit: The stick actually says Tempered 1020 Lug Steel Allentown if that makes a difference.

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Old 03-17-06, 04:55 PM   #2
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Ross had a varied history, yes. Cr-Mo is Chrome Molybdenum alloyed steel. Good stuff. The blue bike frame looks to be much higher quality than the complete bike - the cantilever brake bosses on the blue frame and the forged dropouts indicate that it was originally a fairly high end bike. The other one is made of 1020 HiTen Steel, not as good as Cr-Mo. And yeah, they were made in Allentown, except for the ones subcontracted out (cheap ones to Asia, really nice ones to American builders, the Signature line).
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Old 03-17-06, 05:25 PM   #3
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Luker, thanks for the response. I had sort of ascertained that the blue frame was of higher quality, but I wasn't sure. On the complete bike I was happy to see that it had a pair of center-pull brakes that I took off, but I'll probably junk the rest of it.
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Old 03-17-06, 07:34 PM   #4
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I found a Ross Grand Prix on a trashpile recently and am very close to buying tires, tubes and shifter cables. What I don't know is the seat post diameter. It's missing the seat post. I have narrowed it down to three sizes. 25.4, 25.8 and 26.0 mm.

It has Shimano shifters on the down tube. Does anyone know for certain which size seat post Ross used? Sheldon "seat post" Brown has conveniently left Ross out of his seat post data base.
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Old 03-17-06, 08:04 PM   #5
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I've got a Ross frame that looks similar to that professional. came with full Shimano 600 group. The seatpost is larger the 25.6, smaller than 26.8 (I've tried both those sizes in place of the stock post). It's probably 26.0, but might be 25.8 I suppose
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Old 03-17-06, 08:30 PM   #6
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Ross is known mainly for overweight low-end junk, but the company did turn out (or rebrand, perhaps??) some pretty nice frames in the late 1980s and early 1990s. I bought a ca. 1990 mountain bike (MT-1600) at a yard sale, and the aluminum frame was far better than the original components. With a decent wheelset (Shimano Parallax/Mavic) and crankset (Sugino), it's not a bad bike.
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Old 03-17-06, 08:41 PM   #7
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I really messed around with the Ross frame this afternoon and it's in surprisingly good shape. I think I may tinker with it and try to make a single-speed out of it and paint it. It's pretty light and seems strong for what it is, so I think it may do well for a Frankenbike.
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Old 03-17-06, 10:51 PM   #8
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Top frame looks like a MTB to me, judging by the brake studs at the back. The Professional is a model I'm not familar with. Probably fit in somewhere between the Signature series and the Grand Tour bikes, which would make it a good, serviceable, but heavier bike. The Ross Company moved from Rockaway Beach, NY to Allentown PA, sometime in the 70's, hence the Allentown decal.
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Old 03-17-06, 11:01 PM   #9
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Quote:
Originally Posted by TRUMPHENT
I found a Ross Grand Prix on a trashpile recently and am very close to buying tires, tubes and shifter cables. What I don't know is the seat post diameter. It's missing the seat post. I have narrowed it down to three sizes. 25.4, 25.8 and 26.0 mm.

It has Shimano shifters on the down tube. Does anyone know for certain which size seat post Ross used? Sheldon "seat post" Brown has conveniently left Ross out of his seat post data base.
That sounds like the small diameter tubing Schwinn used on the Continental seat tube.
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Old 03-18-06, 09:39 AM   #10
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Quote:
Originally Posted by duane041
Top frame looks like a MTB to me, judging by the brake studs at the back.

I hadn't really figured on this, but that does make sense. Does everyone else agree or were there road bikes made with frames that included those type of brake mounts?
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Old 03-18-06, 11:37 AM   #11
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There is a very easy way to tell whether the top frame is a road or a mountain frame. Slip in a 26" rear wheel and see whether the pads of a typical cantilever brakeset could be adjusted to strike the rim. If they hit too high, it is a road touring frame designed for 27" or 700C rims.

I just posted a picture of my 1988 Schwinn mountain bike in the "show us your vintage mountain bikes" thread. As was typical in that day, the frame tubes are not particularly large in diameter.
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