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Old 03-08-05, 09:46 AM   #1
sruti
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'87 Bridgestone 450

This is a nitpicky question for what is basically a yard sale find, but it's my first steel roadie since the late 80's (won't be my last) and I'm curious...

I recently acquired a Bridgestone 450. Looks pretty much like the one in the 1987 catalog here:
http://www.sheldonbrown.com/bridgestone/1987/index.htm

I noticed that the catalog's descrition of the frame material simply says "CrMo triple-butted tubing" but the descriptions for the higher end models (the 550 and T700) seem to provide more detail, like "CrMo triple-butted tubing" but also specific info about seat tube and chain stay - "CrMo tapered seatstay" "CrMo chainstay."

Should I assume the seat tube and chain stay on the 450 are not actually CrMo? Might explain the 2-3 extra lbs the 450 carries over these models...

-sruti
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Old 03-08-05, 10:10 AM   #2
sydney
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Quote:
Originally Posted by sruti
This is a nitpicky question for what is basically a yard sale find, but it's my first steel roadie since the late 80's (won't be my last) and I'm curious...

I recently acquired a Bridgestone 450. Looks pretty much like the one in the 1987 catalog here:
http://www.sheldonbrown.com/bridgestone/1987/index.htm

I noticed that the catalog's descrition of the frame material simply says "CrMo triple-butted tubing" but the descriptions for the higher end models (the 550 and T700) seem to provide more detail, like "CrMo triple-butted tubing" but also specific info about seat tube and chain stay - "CrMo tapered seatstay" "CrMo chainstay."

Should I assume the seat tube and chain stay on the 450 are not actually CrMo? Might explain the 2-3 extra lbs the 450 carries over these models...

-sruti
The tubing sticker refers to the main triangle at a minimum. If the stays are something significantly different like hi-ten that may also be mentioned. A different(AKA lower end) parts mix can also add significant pork.Even gas pipe in the stays would not add an additional 2-3 pounds.
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Old 03-08-05, 11:02 AM   #3
colinm
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Nice bike!
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Old 03-08-05, 12:00 PM   #4
sruti
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Nice bike!
I agree. I've hardly ridden my techno-bike since I got the Bridgestone.
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Old 03-08-05, 12:25 PM   #5
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Not to derail le thread -

But I know what you mean. I've only bought one bike new - an '87 12 speed Cannondale in, well, 1987. Yesterday I test rode a new $1000 30 speed C'dale, and I hated it.

Have fun with that Stone.
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Old 03-08-05, 01:30 PM   #6
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Quote:
Originally Posted by sruti
Should I assume the seat tube and chain stay on the 450 are not actually CrMo? Might explain the 2-3 extra lbs the 450 carries over these models...

-sruti
It's got a CrMo fork, so it's most likely that the stays are the same steel, but just plain gauge. Mind you, triple-butting is not a sign of low quality.
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Old 03-08-05, 02:26 PM   #7
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Originally Posted by clayface
It's got a CrMo fork, so it's most likely that the stays are the same steel, but just plain gauge. Mind you, triple-butting is not a sign of low quality.
Sounds right. I suspect a lot of those 2-3 pounds will be found in the wheelset, crankset and pedals.
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