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Old 08-31-08, 06:52 PM   #1
dods1600
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Whats the purpose of doing this?

Hi, I was looking through some pictures of an old bike my grandma used to race with and it had forks on it that look very similar to this... Whats the point to doing this to the fork blades

http://www.classiclightweights.co.uk/batesdiad2.jpg

Oh she also raced during the 50's

Thanks
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Old 08-31-08, 06:56 PM   #2
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i wouldn't know, but could ya post the pics of yer granny's ol' bike???
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Old 08-31-08, 08:54 PM   #3
dods1600
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Ya, i'll have to back over there and scan them in
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Old 09-01-08, 12:03 AM   #4
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I saw something about the British racing federation not allowing brand decals on racing bikes. So the builders made their bikes recognizable by frame design alone. I could be passing on bad information here. Hetchins was famous for bendy stays, don't know about forks. Pretty sure it was for looks or for marketing.
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Old 09-01-08, 05:41 AM   #5
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Those are Bates Cantiflex tubing.
Supposdely to make the ride more comfotable.
http://hometown.aol.co.uk/reclassicb...flex_Home.html
Can you post pictures of the complete bike?
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Old 09-01-08, 08:59 AM   #6
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Wikipedia has an excellent article on rake and trail that might give you some insights...
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Old 09-15-08, 10:20 PM   #7
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Toeclip overlap clearance?
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Old 09-16-08, 12:31 AM   #8
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Originally Posted by zonatandem View Post
Toeclip overlap clearance?
i don't think so, the the rake of the fork will be (or should be) the same no matter what path the fork blade takes down to the dropout
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Old 09-16-08, 04:33 AM   #9
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Originally Posted by zzzwillzzz View Post
i don't think so, the the rake of the fork will be (or should be) the same no matter what path the fork blade takes down to the dropout
Right, zzz! I think it was mainly for brand identification. Many older makers achieved the rake they wanted by bending the fork tubes late and with small radius, to create a straight zone and a spring zone. Supposed to let the fork absorb road shock a bit better. With so many curves, I don't know how much flex this z-bend will have.

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Old 09-17-08, 08:42 AM   #10
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The fork equivalent of a Kirk Terraplane.
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Old 09-19-08, 09:16 AM   #11
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Perhaps it has to do with maintaining a head angle while increasing your wheelbase. Not sure why this would be desirable for this application in particular. I agree with the bump absorption theory as well.
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Old 09-20-08, 12:04 PM   #12
fish2find
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Quote:
some pictures of an old bike my grandma used to race with
Never heard that statement in my life, VERY KEWLIO!!
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