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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 01-27-11, 08:54 AM   #1
vladuz976
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Kaisei tubing difference

What exactly is the difference between
Kaisei 019
Kaisei 022
Kaisei 019E
Kaisei 8630
Kaisei 8630R

?
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Old 01-27-11, 09:02 AM   #2
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United Bicycle Institute of Ashand, Oregon, uses Kaisei tubing.

Their store site explains the differences between each of Kaisei's offerings:

http://www.bikeschool.com/store/inde...Steel%20Tubing
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Old 07-19-11, 12:02 PM   #3
laced
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UBI leaves off Kaisei 4130R. Seems to have roughly equivalent specs to Kaisei 8630R, though I see it rarely. I'm supposing both are heat-treated, but what is the difference? Can anyone vouch for 4130R's liveliness, springiness, stiffness, ride quality???
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Old 07-19-11, 05:18 PM   #4
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Quote:
Originally Posted by laced View Post
4130R's liveliness, springiness, stiffness, ride quality???
All of those attributes vary based on frame design, tubing diameter, and thickness of the tubes....the 4130/8630/whatever designations mean nothing in that context.

The thinner, lighter tubes are made from different steel alloys because they they need to be stronger because they are....erm... thinner and lighter!
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Old 07-19-11, 05:27 PM   #5
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This is a perfect question for one of the less used parts of this forum. Im sure the guys and gals in the framebuilders section will be much more knowledgable and usefull than the collective here will.
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Old 07-19-11, 06:01 PM   #6
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It's funny how many street riders geek out over fancy tubing when Mr.Yamaguchi uses 4130 and Hi-ten for his $1700 street fixie frame.
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