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Old 08-18-08, 02:48 PM   #1
annieknowby
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Anyone ever convert a shimano FF drivetrain to fixed?

HELP!!! I'm pretty new to being my own mechanic here, but I have so many awesome older bikes and I just want to start using them or making them usable for someone else. This drivetrain isn't widely discussed on how-to sites and I was wondering if anyone has dealt with this situation before... feel free to IM me too if you're into that AIM: annieknowby
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Old 08-18-08, 07:44 PM   #2
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They will not make a fixey,the cogs are not really fixed and will turn with good pressure.
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Old 08-19-08, 06:25 PM   #3
FlatTop
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With the freewheel in the bottom bracket, I don't see how this could work as a fixie. At least not as easily as replacing with a standard BB, which I've done.

The rear hub is not solidly fixed, as frameteam2003 has said.
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Old 08-22-08, 12:57 PM   #4
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Fun with Shimano's Abortions

Quote:
Originally Posted by annieknowby View Post
HELP!!! I'm pretty new to being my own mechanic here, but I have so many awesome older bikes and I just want to start using them or making them usable for someone else. This drivetrain isn't widely discussed on how-to sites and I was wondering if anyone has dealt with this situation before... feel free to IM me too if you're into that AIM: annieknowby
I was a shop mehanic for 10 years and am a certified fixed gear addict as well as a fan of the late Sheldon Brown, so I like to make things like 160-speed bikes and tall-offroad-track-tandems and hence feel qualified to answer your question:
The other fellow was correct in that FF systems have a "safety" feature that allows the cogset to freewheel if your shoelaces or pantsleg gets caught in the chainrings. I have welded freewheels on to make multispeed fixies, but don't like backlash , as the whole beauty of fixedgear is the precise control you have in traffic--besides, its hell on the rear derailleur.
There are many better ways to have multispeed capability with a fixed gear.

The best thing you an do for a Shimano FF bike is to wrap all your Shimano Positron(Positrash) derailleur parts around it, add all the Shimano RapidRise (viagra competition?) derailleurs you an find, weld on a few dozen pounds of BioPace chainrings and throw the whol offensive mess as far as you can into very, very deep saltwater or an active volcano. Many a mechanic will thank you.
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Old 09-08-08, 03:48 PM   #5
sailorbenjamin 
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on that note, I have an entire ff system in a box downstairs that I haven't brought myself to throw out yet.
Anyone want it?
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Old 09-09-08, 01:20 PM   #6
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...kind of.
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Old 09-09-08, 01:41 PM   #7
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