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Old 10-07-13, 08:31 PM   #1
cyrano138
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question about Raleigh supercourse0BB, stem/steerer tube, and a decent chain tool.

I was reading on another thread that some or most or all (depending on who you ask) supercourses have strange proprietary threading on the BB's. Is there a way to find out which I have without taking it apart? Will either of the threadings found on a supercourse be impossible to find a newly manufactured replacement for for (not a big fan of ebay cruising, waiting for something to pop up)?
I have a '77, by the way.

Also, I was reading that some quill stems shouldn't be lowered too far because of a butted ...something (steerer tube?). I don't think this is an issue for my bike because when I had the stem out, I couldn't see an difference in diameter from the top to the bottom, but if it's the frame that's butted maybe I wouldn't see it unless I had the fork out of there, too.
There is a small spike inside of the fork's upper tube (sorry I am still learning proper names) that seems to be there, as far as I can figure, to keep the expander from dropping out the bottom. Is any of this correct?

Finally, can someone recommend the most inexpensive sturdy, compact chain tool they can think of?

Thanks again for all your help and patience, guys. I really went in over my head on this bike. I'm not a mechanic and I have no tools even after years of riding, because my bikes are super low maintenance, and I used to have a friend who was a mechanic. I sat and watched him replace my chain on my fixed gear, but I couldn't tell you the first thing about how to do it now. I guess you really only learn by doing something, which is a thing I used to tell my students when I was a math teacher, but forget occasionally, myself.
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Old 10-07-13, 08:34 PM   #2
PatTheSlat 
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Super Courses in every case I'm aware of do not have the oddball Raleigh threading.
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Old 10-07-13, 09:10 PM   #3
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Quote:
Originally Posted by PatTheSlat View Post
Super Courses in every case I'm aware of do not have the oddball Raleigh threading.
Agreed. And by '77 you should be dealing with a square taper JIS crank, which will make for easy servicing, and replacement if needed. And I'd recommend a Park CT-5C chain tool, which you should be able to get for like $15.

Pics of the bike are of course obligatory.
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Old 10-07-13, 09:12 PM   #4
elcraft
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'77 Super Course would have standard BB threading. Whether or not a stem would jam into the butted end of the steerer tube depends on the particular frame size and the length of the stem.
What is the size of your frame?
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Old 10-07-13, 10:15 PM   #5
cyrano138
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There are a few pictures of the bike when I bought it here. I'll post more when I've got it finished. I replaced a lot of the stuff that wasn't original like the seat and pedals, clips and straps, and unfortunately the wheels, which were original but too far gone for me to work on. I'm sending them off to bikedued and he's sending me some shimano sidepull breaks.

I have to admit I'm still thinking of converting this to downtube shifting. What would I need to do that?

Would the CT 5C work with a KMC chain? The pin length on the chain I bought is 7.3 mm.
Is there a difference between the CT-5 and the CT-5C?

The frame is about 56 or 57cm I think. I'm going by the standover height, but I assume that's not very accurate since I'm comparing the SO height to a modern frame fixed gear bike. How do I measure it for sure?
*edit: I measured from the center of the bolt that connects the crank arm to the top of the seat tube. It's a 57cm frame.
The Raleigh supercourse stem has what I can only assume is a safety stop, a lip where the stem becomes to wide to fit any further down into the tube, which is where I have it set. Hopefully that's not to far down and I didn't screw anything up.

Last edited by cyrano138; 10-07-13 at 10:50 PM.
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