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Post your Centurion Ironman.. For the love of 80s paint jobs!

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Post your Centurion Ironman.. For the love of 80s paint jobs!

Old 12-22-15, 11:11 AM
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Originally Posted by jetboy
I tried the ammonia for weeks on mine. but if the build up is too much, there is just no way to get in and you got to go all out on it. I did the vice thing as well and just broke the post. hopefully yours is not as bad as mine.
I tried pb blaster for a couple of days, nothing. Then ammonia,for one day,nothing. So I've turned the frame upside down and am gonna leave ammonia a few days and try a table vice.
Thanks, you guys are great. After that its leave it and hope it fits ala RT and if it doesn't hack saw ala Jetboy.
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Old 12-22-15, 05:49 PM
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Originally Posted by Vintage_Cyclist
That's the same frame as my 85 Ironman. Shame to see it so defaced.

The seller definitely found another fork for the bike at some point. Even without the headset installed, it seems like there's an awful lot of fork sticking out of that headtube. Can't help but think the replacement fork came from a larger frame.

The picture of the original frame has a repainted yellow seat tube, but the one for sale has a seat tube that's the original paint, with the original stickers. Something doesn't add up in the story.

That same frame is on Ebay at $155 Centurion Ironman Dave Scott Frameset 60cm Frame and Fork | eBay. I seem to recall it being there previously as a complete bike awhile ago.

The top tube cable guides are pretty rusty too.

Being a 1985 frame it also has the keyhole shaped shifter braze-ons, which would have to be resolved on a rebuild.

Doesn't seem to be worth the trouble.
This one languished on the local CL for months. I decided to finally pull the trigger and picked it up for very cheap. The paint is beat! Scratches and chips abound. He also used paint remover to get rid of the yellow over paint that a previous owner did, so there are places where the paint was completely removed. The current owner did the red over paint on the lugs. I have been thinking of doing a CIM in custom paint, but couldn't bring myself to strip any of my other frames. Even the worst of those are not even close to this one. I am fairly certain that the fork is from a centurion bike and likely came with the bike originally. It looks similar to others I have seen from this year. Maybe it was just never cut down properly. It is a tall 62cm frame, so fork length may be right when headset is installed. Either way it will be used by me and I'll make sure to trim it as needed. Now I just need to come up with a color scheme and get this thing stripped. Do they do black chrome plating anymore? Does RIBBLE still have 105 5800 for dirt cheap?







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Old 12-22-15, 06:05 PM
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Originally Posted by btpdragon
Now I just need to come up with a color scheme and get this thing stripped. Do they do black chrome plating anymore? Does RIBBLE still have 105 5800 for dirt cheap?
Looks like an '85 that has seen better days. Strip and paint or strip and powdercoat would be nice.
Black chrome plating would be great, but the frame prep would be cost-prohibitive. A powdercoater can get really close to black chrome.

Not sure if the decals are available, haven't checked VeloCals in a while, but worth a look. Maybe he can combine an Ironman logo with the older Centurion downtube logo or something.
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Old 12-22-15, 06:07 PM
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Regarding the stuck seatpost, what about soundwaves? I know they are used to break up kidney stones and other things. Maybe I should start a stand alone thread and get some technical types to respond.
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Old 12-22-15, 06:10 PM
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Originally Posted by seypat
Regarding the stuck seatpost, what about soundwaves? I know they are used to break up kidney stones and other things. Maybe I should start a stand alone thread and get some technical types to respond.
Just don't start a band.
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Old 12-22-15, 06:21 PM
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Originally Posted by btpdragon
This one languished on the local CL for months. I decided to finally pull the trigger and picked it up for very cheap. The paint is beat! Scratches and chips abound. He also used paint remover to get rid of the yellow over paint that a previous owner did, so there are places where the paint was completely removed. The current owner did the red over paint on the lugs. I have been thinking of doing a CIM in custom paint, but couldn't bring myself to strip any of my other frames. Even the worst of those are not even close to this one. I am fairly certain that the fork is from a centurion bike and likely came with the bike originally. It looks similar to others I have seen from this year. Maybe it was just never cut down properly. It is a tall 62cm frame, so fork length may be right when headset is installed. Either way it will be used by me and I'll make sure to trim it as needed. Now I just need to come up with a color scheme and get this thing stripped. Do they do black chrome plating anymore? Does RIBBLE still have 105 5800 for dirt cheap?






Welcome to the forum. I'm not really a fan of repainting or a powder coat CIM. But in this case I might have to make an exception. What is that around the lugs? The shifter braze on have to be modified in some way. Others will let you know shortly how to tackle that. Still it's a first year Ironman with a lot of potential. And I'm looking forward to your build. Keep us updated with pics and such. Also don't forget to visit the centurion serial number thread. Congratulations, good luck and have fun. Others will be around shortly.

Last edited by texaspandj; 12-22-15 at 06:51 PM.
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Old 12-22-15, 06:39 PM
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Originally Posted by RobbieTunes
Just don't start a band.
Ladies and Gentlemen please welcome to the CIM Forum Amphitheater: Seypat and the Soundwaaaaaves! Singing their latest hit "Stuck Post Blues" with opening act "Robbie Rock'n Tunes".

Last edited by texaspandj; 12-22-15 at 07:02 PM.
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Old 12-22-15, 06:59 PM
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from what I saw of the corrosion - sound ain't gonna cut it. the issue is that the corrosion expands in the space between the post and the tube- pushing against the tube and I suppose could even start to expand it a bit. it only stops expanding/corroding when its air tight. and once its air tight, its also liquid tight and penetrating fluids are useless.

vibration would also just vibrate it all together and do nothing unless you could pinpoint the sound wave to less than .1mm or so right at the point of contact.. and work your way in. or some industrial machine i suppose that just grabbed the post and made micro vibrations under .1mm - it might work but the effort there is more than jsut cutting.

Last edited by jetboy; 12-22-15 at 07:17 PM.
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Old 12-22-15, 07:36 PM
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Maybe the fork steerer only looks so long because the headset cups are off the frame.
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Old 12-22-15, 07:36 PM
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Originally Posted by texaspandj
Welcome to the forum. I'm not really a fan of repainting or a powder coat CIM. But in this case I might have to make an exception. What is that around the lugs? The shifter braze on have to be modified in some way. Others will let you know shortly how to tackle that. Still it's a first year Ironman with a lot of potential. And I'm looking forward to your build. Keep us updated with pics and such. Also don't forget to visit the centurion serial number thread. Congratulations, good luck and have fun. Others will be around shortly.
Maybe the fork steerer only looks so long because the headset cups are off the frame.
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Old 12-22-15, 07:42 PM
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Originally Posted by BoozyMcliverRot
Are Diamondbacks allowed in here? I have a 1991 Master TG.
Please also post in the Vintage Diamond Back thread. https://www.bikeforums.net/classic-vi...ond-backs.html
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Old 12-22-15, 08:00 PM
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Luckily, I haven't had to deal with a stuck post yet. As Robbie said, long term patience should be the key. Tough to do when you are trying to get a bike finished.
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Old 12-22-15, 08:04 PM
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Are the heat and cold properties of steel and aluminum different? I'm thinking back to the hot/cold therapy we used to get for twisted ankles.
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Old 12-22-15, 09:32 PM
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That's the correct and original fork for that tall CIM, which originally came with a headset that had a fairly large stack height- seems to me it was a Tange Falcon, but Robbie will correct me if if I'm (probably) wrong. In any event, that's a great candidate for a powder coat job. Downtube shifter mounts must be reworked if you intend to install anything other than early Shimano friction shifters, since thar's the only thing that will fit. But not hard to do.

Pat, you bring up a good point about cold and hot expansion rates. Back in the day, we had good luck using heat from a hair dryer or heat gun on the seat tube until it got really hot, then freezing the seat tube with commercial bubble gum remover from a spray can. The seat tube expanded and the sear post contracted and they broke loose.
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Old 12-22-15, 10:01 PM
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Looks like the 85 would have had a Shimano 600 headset. HS-6207
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Old 12-23-15, 12:01 AM
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Originally Posted by rccardr
That's the correct and original fork for that tall CIM, which originally came with a headset that had a fairly large stack height- seems to me it was a Tange Falcon, but Robbie will correct me if if I'm (probably) wrong. In any event, that's a great candidate for a powder coat job. Downtube shifter mounts must be reworked if you intend to install anything other than early Shimano friction shifters, since thar's the only thing that will fit. But not hard to do.

Loose Screws
still has the 4.5mm bolts that fit those braze-ons, if bar-end or brifter options are considered. Popping the bolts out of the Dura Ace shifter screws is a cinch and then they can be used to attach cable stops.

Originally Posted by fleslider
Looks like the 85 would have had a Shimano 600 headset. HS-6207
That's what's on my 85 Ironman.
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Old 12-23-15, 06:50 AM
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I think the headset was 600EX, which is what I've encountered on the only '85 I've had.

Believe me, when re-doing cehowardGS's Raleighs, the Tange Aero was a tempting target for replacement, as I have an NOS 105 here and a minty Golden Arrow. Few look as good as the Aero, and few are as hard to adjust and tighten.

I've successfully mounted modern shifters and DT cable stop to those '85 and earlier posts, but darned if I remember what I did. On a Cilo, and on an '81 Semi Pro.
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Old 12-23-15, 08:44 AM
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If I remember correctly, you did it by slicing and dicing the downtube cable stops to fit the different shaped braze-ons and used 4.5mm bolts, and I did it by slicing and dicing the braze-ons to fit the standard square base mounts and re-tapping the threads to use a 5mm bolt. Both worked fine in the end.

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Old 12-23-15, 08:59 AM
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Originally Posted by rccardr
If I remember correctly, you did it by slicing and dicing the downtube cable stops to fit the different shaped braze-ons and used 4.5mm bolts, and I did it by slicing and dicing the braze-ons to fit the standard square base mounts and re-tapping the threads to use a 5mm bolt. Both worked fine in the end.

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Old 12-23-15, 02:34 PM
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Great Thread! Brings back a lot of memories. I bought a new Red Centurian Ironman in 1985 for over $600 new, which was a lot of money back then. I was about 13 and saved for it for 6 months from money I got from my paper route. I sure wish I had pictures of that bike. I remember how proud I was of that bike. It was my first road bike after having owning only BMX bikes before that. I remember the turbo seat, araya rims, dia compe aero hoods, Shimano 600 parts, and the candy cane bar tape (red and white bar tape) all very clearly in my head. I used this bike for about 3 years to get me around all over town for all sorts of duties before I got my drivers license and sold it off. I sold all 3 of my bikes once I got my license and did not get back into biking until about 1993 when I bought my Mtn Bike, and did not get another road bike until about 2001 when I picked up a Litespeed Tuscany.

However, I am glad I don't have it anymore. Even the cheaper newer bikes today are much better! better shifting, more comfortable, stiffer, etc. You guys can keep on riding a 1985 Steel bike if you want... me I will stick to the newer carbon fiber bikes with carbon wheels, and better shifting! I though would not mind having a pristine 1985 Red Centurian to hang on my wall.
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Old 12-23-15, 02:59 PM
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I have my 87 54cm Miami Vice hanging upside down with ammonia in the seat tube (by way of the bb shell). And I was gonna let it sit thru the holidays. Hoping that eventually it would loosen the seatpost. But I'm getting pretty impatient after one day. And thinking I'll just continue with the build.
The paint is the roughest of all my CIM. Meanwhile my 56cm Miami Vice is in very good condition. Probably closer to excellent condition. Maybe I'll just ride it to calm me down and not be so excited to build my 54cm. We'll see.

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Old 12-23-15, 03:09 PM
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Originally Posted by texaspandj
Oh we will. And our carbons,and aluminums as well. To each his own. Thanks.
YUP, we all have our own preferences of rides and style. So no harm no foul.
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Old 12-23-15, 03:45 PM
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Originally Posted by texaspandj
I have my 87 54cm Miami Vice hanging upside down with ammonia in the seat tube (by way of the bb shell). And I was gonna let it sit thru the holidays. Hoping that eventually it would loosen the seatpost. But I'm getting pretty impatient after one day. And thinking I'll just continue with the build.
The paint is the roughest of all my CIM. Meanwhile my 56cm Miami Vice is in very good condition. Probably closer to excellent condition. Maybe I'll just ride it to calm me down and not be so excited to build my 54cm. We'll see.
Intriquing. I used PB Blaster (peeyew) for 2 days on my Colnago. Put an old seat on it and whacked the seat nose with a heavy hammer. It worked. Cant wait to see how your trick works.
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Old 12-23-15, 04:05 PM
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Originally Posted by OldsCOOL
Intriquing. I used PB Blaster (peeyew) for 2 days on my Colnago. Put an old seat on it and whacked the seat nose with a heavy hammer. It worked. Cant wait to see how your trick works.
I also tried PB Blaster for a couple of days, it didnt work. Apparently the aluminum seatpost has bonded with the steel seat tube and ammonia will supposedly dissolve the aluminum oxide.
I'm going by the recommendation of "14 ways to unstick a seatpost " by Sir Sheldon Brown.
The 14th way seems Drastic. I think I'd try the 12th way which is what jetboy did. Hack saw baby.
BTW did you hit the seat nose upwards?
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Old 12-23-15, 04:35 PM
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Originally Posted by ErichVonCartman
I bought a new Red Centurian Ironman in 1985 for over $600 new, which was a lot of money back then. I was about 13 and saved for it for 6 months from money I got from my paper route. At this point, I was with you....


However, I am glad I don't have it anymore. Even the cheaper newer bikes today are much better! better shifting, more comfortable, stiffer, etc. You guys can keep on riding a 1985 Steel bike if you want... me I will stick to the newer carbon fiber bikes with carbon wheels, and better shifting!
...and down, down, down, in a burning ring of fire....

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