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Old 08-05-08, 05:47 PM
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Azul the Cat
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Introducing myself

Hows it going? Been reading the forums for a little bit, and decided to jump in and build myself a single speed. Picked up a 1990 Cannondale SR300 as a project. Anyone know what size BB Cannondale used in 1990?





Comments always welcome.
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Old 08-05-08, 07:06 PM
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duno bout the bb, but the lack of horizontal dropouts may be a problem.

*just re-read the post
since you're going single speed i guess you could use a chain tensioner.
good luck with the project!
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Old 08-05-08, 07:21 PM
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Nice looking bike for a project. It should have a standard 68mm bb shell. The spindle length will depend on the crank set you choose.
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Old 08-05-08, 07:57 PM
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Originally Posted by prawza View Post
duno bout the bb, but the lack of horizontal dropouts may be a problem.

*just re-read the post
since you're going single speed i guess you could use a chain tensioner.
good luck with the project!
May or may not be, Ive seen lots of people build on those without problems. So Im going with "not"
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Old 08-05-08, 08:56 PM
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its gonna be BSA threading, so any English BB will work fine. That's a fine bike you've got there - almost a shame to convert.
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Old 08-06-08, 05:23 AM
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Thanks for the help guys.

Anyone have experience taking apart a SunTour cluster?
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Old 08-06-08, 06:53 AM
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Are you trying to remove the freewheel or service it?

To remove it you will need the right sized freewheel tool and a bench vice. It's quite easy with the right tool and nearly impossible without it. Sheldon will tell you how: http://www.sheldonbrown.com/freewheels.html
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Old 08-06-08, 07:39 AM
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I want to remove all the cogs I dont need and set up the one I do need with spacers.
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Old 08-06-08, 08:17 AM
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If this is the stock wheel for the bike, it has a freewheel and not a cassette. I don't know if it is possible to replace cogs with spacers on a multi-speed freewheel (I've never heard of this), but even if it is, it seems like a complex solution to a simple problem.

A single speed freewheel is only a few bucks.
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Old 08-06-08, 09:00 AM
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vertical dropout will not be a problem since he's running SS and not fixed.
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Old 08-06-08, 09:14 AM
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i was considering an old cannondale as conversion for rain/lockup (my nishiki is too heavy and dumb).
how much can one expect to find one of those in OK condition? i'm really only concerned about the frameset...

what is the difference between the 1990s sr300, 500, 600, 1000, etc?
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Old 08-06-08, 11:24 AM
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Originally Posted by huerro View Post
If this is the stock wheel for the bike, it has a freewheel and not a cassette. I don't know if it is possible to replace cogs with spacers on a multi-speed freewheel (I've never heard of this), but even if it is, it seems like a complex solution to a simple problem.

A single speed freewheel is only a few bucks.

So if I am understanding you correctly, I can just remove the whole cluster, and replace with a BMX style single speed free wheel?
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Old 08-06-08, 11:27 AM
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Originally Posted by sp00ki View Post
i was considering an old cannondale as conversion for rain/lockup (my nishiki is too heavy and dumb).
how much can one expect to find one of those in OK condition? i'm really only concerned about the frameset...

what is the difference between the 1990s sr300, 500, 600, 1000, etc?
I got this frame for $100. came with everything you see in the pics. It is in nice shape. Has a few minor scratches on the down tube, but thats all. I have found that Vintage Cannondale.com has a lot of great info, plus all the old catalogs.
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Old 08-06-08, 12:55 PM
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Originally Posted by Azul the Cat View Post
So if I am understanding you correctly, I can just remove the whole cluster, and replace with a BMX style single speed free wheel?
Correct. Read about the two different kinds of hubs and learn how to identify them here: http://www.sheldonbrown.com/free-k7.html. The 1990 R300 originally came with a freewheel.

Unfortunately, they don't give you the easy chainline adjustability of a freehub, so you may have to respace and redish the rear to get a good chainline, although perfect chainline isn't as crucial with a freewheel as it is with a fixed gear. If you haven't already, I highly recommend you read this article: http://www.sheldonbrown.com/singlespeed.html. You can learn how to respace and redish your wheel on the internet (I like the bob's garage section on the fixed gear gallery) or you can pay your bike shop to do it.
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